baber/WOPTO huggingface dataset:
Patent EP-1046191-B1 (EP)
Inventor: YOUNG NIGEL D
IPC: G02F1/1339
Filed: 1999-08-03
Granted: 2003-12-03
Abstract: Pour la fabrication d'affichages à cristaux liquides à matrice active (AMLCD) et autres dispositifs électroniques analogues de grande taille, on forme des éléments de circuit à film mince (11, 12, 13, 14) sur un substrat (10), un masque assurant l'auto-alignement pour certaines étapes du processus. Un pilier vertical (20) relie une première zone (10a) du substrat (10) à l'une des faces d'une seconde zone (10b) sur laquelle est appelé à être formé un élément de circuit à film mince (11), par exemple un transistor à film mince à effet de champ (TFT). Les première et seconde parties de l'élément de circuit (11), par exemple le canal TFT (3') et la porte (5a'), sont définies respectivement par les première et seconde expositions obliques de rayons (61, 62) passant contre le pilier (20) qui fait office de masque (shadow mask) pour une partie de la seconde zone (10b). Parmi la pluralité de piliers verticaux (20), certains peuvent être conservés sur le dispositif et servir, par exemple, de supports pour le montage d'une plaque (30) à l'écart du substrat (10). Cette configuration convient tout particulièrement bien pour la fabrication d'affichages à cristaux liquides à matrice active et autres affichages analogues à panneau plat, la plaque (30) et le substrat (10) formant alors les panneaux avant et arrière du dispositif d'affichage, et le support d'affichage (40) occupant l'espace défini par les supports (20).
Patent EP-1125284-B1 (EP)
Inventor: BESSETTE BRUNO
IPC: H04Q7/22
Filed: 1999-10-27
Granted: 2003-08-06
Abstract: A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.
Patent EP-1057055-B1 (EP)
Inventor: PARK HYE YOUNG
IPC: G02B6/028
Filed: 1999-12-14
Granted: 2006-01-18
Abstract: The present invention is related to a dispersion-shifted optical fiber for use in a wavelength division multiplexing system, which comprises a core, an inner clad, and a silica clad, wherein the optical fiber has a relatively low dispersion at a wavelength of 1550 nm, an effective area of 60 mum2 and small bending loss. The core consists of a first and a second core, wherein the core has a refractive index distribution. The inner clad consists of a first inner clad having a refractive index smaller than that of the second core and a second inner clad having a refractive index smaller than that of the second inner clad. A silica clad surrounds the inner clad and has a refractive index smaller than that of the second inner clad.
Patent EP-1147479-B1 (EP)
Inventor: WILZ DAVID M SR
IPC: G06K7/10
Filed: 1999-12-02
Granted: 2004-10-06
Abstract: An automatically-activated code symbol reading system (1) comprising a bar code symbol reading mechanism (4) contained within a hand-supportable housing having a manually-activatable data transmission switch (7A). During symbol reading operations, the bar code symbol reading mechanism (4) automatically generates a visible laser scanning pattern (10) for repeatedly reading one or more bar code symbols on an object during a bar code symbol reading cycle, and automatically generating a new symbol character data string in response to each bar code symbol read thereby. During system operation, the user visually aligns the visible laser scanning pattern (3, 10) with a particular bar code symbol on an object (e.g., product, bar code menu, etc.) so that the bar code symbol is scanned, detected and decoded in a cyclical manner. During the bar code symbol reading cycle, the user actuates the data transmission switch (7A) producing a data transmission control activation signal and enabling a currently or subsequently produced symbol character data string to be automatically selected and transmitted to the host system (5). <IMAGE>
Patent IT-1310065-B1 (IT)
Title: Pairing of two or more threads for use in textile machine for forming knitted products and hosiery, involves cabling threads just before or during use in textile machine
Inventor: ZAGLIO SERGIO
IPC: D04B35/22
Filed: 1999-10-08
Granted: 2002-02-05
Abstract: Two or more threads are paired or cabled to form a combined thread (10), immediately before or during the use of paired thread in textile machine. An independent claim is also included for a device for pairing and interlacing two or more threads and guiding coupled thread automatically to the textile machine. The device comprises an unit for picking up and combining the threads (11,12), tautening unit for stretching an elastic thread, unit (A) for pairing and interlacing adjacent threads (where one thread is drafted if necessary) and an accumulator (220) for collecting and accumulating specific amount of compound thread guided from the pairing and interlacing unit.
Patent IT-1267085-B1 (IT)
Inventor: IOVANE ANTONIO
IPC: G10D3/14
Filed: 1993-12-21
Granted: 1997-01-24
Abstract: A tremolo-bridge for stringed instruments, in which the "bridge" and the "tailpiece" can rotate synchronously on one of two fulcrums according to a travel direction of a tremolo arm. Only one fulcrum at a time is involved during a rotation and the only points of friction during operation of the tremolo device are located at these fulcrums. The tremolo-bridge system advantageously includes a main block and a secondary block, each having its own rotation axis. One block has to work as both "bridge" and "tailpiece" and is pivotally mounted on the other block which, in turn, can be mounted on the instrument body. For best adjustment, two sets of countertension springs are provided (one for each block) as well as a differential adjusting device which changes the distribution of spring tension between the two sets of springs, and hence the two blocks, as well as the total spring tension. The main feature of the system is its adjustable range of stability, over which it is indifferent to the variations of the string pull (due to the fact that it doesn't work in a critical balance position).
Patent IT-1307549-B1 (IT)
Title: Device for pumping and triturating of sewage waters of sanitary fitting composed of two units, one of which is fixed to pipe work system, while other is removable, for repair and maintenance purposes
Inventor: GIOVANNINI MARCO
IPC: E03D/
Filed: 1999-04-08
Granted: 2001-11-14
Abstract: The device has; (a) a soil and waste water collection tank (2), a soil water pipe (3) from the WC and a waste water pipe (4) from the other sanitary fittings, a pipe connecting the device with the discharge pipe (5), and an air-trap for the pressure switch (7); (b) a motor pump (13) and triturate, a pipe (15) connecting the device to the discharge pipe, and a pressure switch (14) for controlling the level of water in the collection tank. The components under (a) are housed in the unit (1) and the components under (b) are housed in the unit (10). The unit (1) is permanently fastened to the WC, while the unit (10) is fastened to the unit (1) but may be separated and removed.
Patent IT-1287281-B1 (IT)
Title: Bed with elastic wooden surface
Inventor: BURTSCHER CHRISTOF
IPC: A47C/
Filed: 1996-04-18
Granted: 1998-08-04
Abstract: The invention produces a wooden bed 1 comprising a base structure having two support beams 2, 3, arranged parallel to each other along the length of said bed, functioning as support for an elastic surface able to support at least one mattress. Said elastic surface is formed by a plurality of flexible elements 5 arranged transversely with regard to the length of the bed, parallel to each other and equally spaced. Each of said flexible elements has a rigid beam 6 made of wood with a cross section resistant to bending, connected at each of its ends to a flexible plank 7, likewise made of wood, so as to form an acute angle with said beam, the free end 71 of each of said flexible planks 7 being fitted into a groove 21 made along each support beam. <IMAGE>
Patent JP-2948205-B1 (JP)
Title: 二次電池用負極の製造方法
IPC: H01M4/38
Filed: 1998-05-25
Granted: 1999-09-13
Abstract: 【要約】
【課題】  ケイ素を活物質として含む焼結体と集電体と の間の接触抵抗を低減できる二次電池用負極の製造方法 を提供する。
【解決手段】  ケイ素を含む負極材料にバインダー及び 溶剤を加えスラリーを調製し、上記スラリーを導電性金 属の箔又はメッシュからなる基材上に塗布し、溶剤を除 去して塗膜を作製し、さらに塗膜を非酸化雰囲気で焼成 し基材と一体化せしめるとともに、焼結する。
Patent JP-2952774-B1 (JP)
Title: 自動車用乳児収納装置
IPC: A47D13/02
Filed: 1998-06-12
Granted: 1999-09-27
Abstract: 【要約】
【課題】  乳児を安全に自動車内に収納する。
【解決手段】  自動車（１）の運転者（５）がルームミ ラー（７）を介して視認し得る車内上部の位置に乳児収 納籠（３）を取り付け、該乳児収納籠は上部（９）を車 内上部に固定すると共に底部（１１）を該上部に対し揺 動自在に吊り下げ、該乳児収納籠の前後両面（２７）は 運転者が透視可能な材料により形成し、該乳児収納籠に おける底部には乳児（３１）を左右方向に寝かせた状態 で挟持する乳児挟持手段（３５）を上方に向けてに突設 し、該底部は乳児の体重により乳児の下面を折り曲げ部 （３７）として前後方向にのみ常時若干折れ曲るように したことを特徴とする自動車用乳児収納装置。
Patent JP-2949666-B1 (JP)
Title: 扉倒れ防止機構
IPC: E05D7/081
Filed: 1998-09-28
Granted: 1999-09-20
Abstract: 【要約】
【課題】  扉を長期間に亘って使用しても傾くことがな く、非常時に閉じることができないといった事態を未然 に防止できる。
【解決手段】  下部脚４が挿入される受座孔１Ａまで外 側から貫通するねじ孔１Ｂを設けるとともに、扉２が傾 くのを防止する止めねじ３をねじ孔１Ｂに螺合して設 け、止めねじ３の先端部が下部脚４を係止・押圧するよ うに構成した。
Patent JP-2970673-B1 (JP)
Title: 局部洗浄方法と局部洗浄装置
IPC: E03D9/08
Filed: 1998-11-12
Granted: 1999-11-02
Abstract: 【要約】
【課題】  洗浄水への空気混入による節水の実効性を高 めると共に、高い洗浄力を発揮する。
【解決手段】  気泡ポンプ８０は、空気室８２を隔てて 気泡分散体８３を有する。気泡分散体８３は、洗浄水管 路８４を流れる洗浄水に接する面（管路壁面全周）に、 多数の独立開孔を備える。よって、空気室８２に圧送さ れた空気は、気泡分散体８３の各独立開孔から管路内に 送られ、それぞれの開孔で微細気泡となって洗浄水に混 入する。洗浄水には、この微細気泡が独立して混入・混 合し、各気泡は、形成当初から独立気泡の状態を保ち、 小径の略球形形状であることから剛性が高く変形しにく い。よって、洗浄水は、空気混入率が１．３という高い 場合でも、空気が気泡状態で安定して分散混合した気泡 流となる。
Patent MD-4266-B1 (MD)
Title: Method for producing the ZnSe single crystal
Inventor: COLIBABA GLEB
IPC: C30B11/00
Filed: 2011-03-17
Abstract: The invention relates to methods for producing semiconductor materials and can be used in semiconductor technology.The method for producing the ZnSe single crystal consists in the growth of ZnSe single crystal from the gas phase at a temperature of 900…1100°C, with a temperature gradient in the crystallization zone of 1…5°C/cm and with an embryo heating and grown crystal cooling speed of 20…60°C/hour, at the same time it is preset a non-uniform distribution of the furnace temperature.
Patent MD-4552-B1 (MD)
Title: Process for producing tantalum or niobium arsenide single crystals
Inventor: NATEPROV Alexandr
IPC: C30B25/00
Filed: 2017-04-20
Abstract: The invention relates to the field of material production technology for electronic engineering, namely the field of producing materials in the form of single crystals and can be used in the production of niobium or tantalum arsenide single crystals.The process for producing tantalum or niobium arsenide single crystals by the chemical transport reaction method in a closed volume with a temperature gradient and using iodine as a transport agent, in which pieces of tantalum or niobium, arsenic and iodine films are loaded into ampoules and placed in a furnace with three temperature zones of 610°C, 850°C and 800°C, the 850°C zone is located in the middle of the ampoule, arsenic - in the zone with the temperature of 610°C, tantalum or niobium - in the zone with the temperature of 800°C, and the quantity of the transport agent is selected depending on the pressure limit of the ampoule selected for the synthesis.
Patent NO-321627-B1 (NO)
Inventor: HATINEN TIMO
IPC: B60S3/04
Filed: 2000-07-28
Abstract: A method of washing vehicles in which a vehicle is washed by an automatic vehicle washing apparatus. The washing apparatus includes a prewashing and washing device, which are arranged to move in relation to the vehicle to be washed in the longitudinal direction of the vehicle. Prewash agent is fed to the surface of the vehicle to be washed with the pseudo-pressure of the prewash exceeding 8 bar.
Patent NO-318383-B1 (NO)
Title: Derivater av 2-aminopyridiner, anvendelse av dem som medikamenter og farmasoytiske preparater inneholdende dem
Inventor: CHABRIER DE LASSAUNIERE PIERRE
IPC: A61K31/495
Filed: 2001-01-03
Abstract: Oppfinnelsen vedrører nye 2-aminopyridinderivater med en aktivitet som inhiberer NO-syntase-enzymer som produserer nitrogenmonoksyd og/eller oppfanger reaktive former av oksygen, fremgangsmåter for fremstilling av dem, farmasøytiske blandinger som inneholder dem og deres terapeutiske anvendelser, spesielt deres anvendelse som NO-syntase-inhibitorer og for oppfanging av reaktive former av oksygen enten de er selektive eller ikke.
Patent NO-316796-B1 (NO)
Inventor: NYSAETHER JON
IPC: G06K9/00
Filed: 2002-03-01
Abstract: This invention relates to a sensor module for measuring structures in a surface, especially in a finger surface being moved over the sensor module, that includes a number of sensor elements, and an outer electrode located aside the sensor elements, the sensor elements being coupled to at least one AC drive circuit providing a varying current or voltage, thus coupling a signal through the sensor elements to the outer electrode. The sensor elements are also coupled to an electronic circuit positioned on a substrate, the substrate includes conductor leads coupling the sensor elements to the electronic circuit, and the electronic circuit being adapted to measure the magnitude of the capacitance or AC impedance.
Patent NO-327111-B1 (NO)
Inventor: KNOER PETER
IPC: F26B17/04
Filed: 2002-04-08
Abstract: On drying pasty materials, particularly sewage sludge, the material is compacted in an intermediate drying stage with a dry fraction of 60 to 80%, so that relatively low energy costs are required. The conveying of the material takes place both during pre-drying and after leaving the compactor on one or two air-permeable conveyor belts (3, 4) succeeding one another in the conveying direction and which are enclosed in a common housing (2). Thus, drying before and after compacting is performed under identical method conditions, so that it is possible to produce a simple and therefore inexpensive installation for performing the method. The finished product has advantageous characteristics with regards to density and abrasion resistance, so that dust production is avoided during subsequent handling.
Patent NO-323537-B1 (NO)
Inventor: ISHII SACHIO
IPC: F26B23/02
Filed: 2002-09-06
Abstract: There is provided a method for drying wood which is capable of efficiently drying wood in a shorter period of time, by maintaining the concentration of a combustion gas contained in a drying room atmosphere for use in drying the wood to a high value and by maintaining the pressure of the drying room atmosphere to a high value. According to the method, wood fuels such as waste wood are put into a combustion chamber 4a provided in a lower area of a combustion gas generating furnace 4 and then the wood fuels are burned, followed by introducing the high-temperature combustion gas generated by the burning into an upper area of the drying room 1 housing the green wood, to thereby thermally dry the wood by the combustion gas. In this method, the thermal drying of the wood is carried out by maintaining the concentration of the combustion gas present in the drying room atmosphere to the high value and by maintaining the pressure of the drying room atmosphere to the high value.
Patent NO-323959-B1 (NO)
Inventor: LANGHOUT JACO MATTHIJS VAN ZII
IPC: B65D47/20
Filed: 2003-03-05
Abstract: Shut-off valve, composed of a container ( 3 ) provided with valve seat ( 4 ), and also a valve body ( 2, 22, 42 ) that can be moved through the opening bounded by the valve seat ( 4 ), in order to provide a seal. The valve body ( 2, 22, 42 ) is provided with a conical or spherical shut-off edge and is connected to the container ( 3 ) by way of a flexible connecting part ( 5 ). This makes it possible to move the valve body ( 2, 22, 42 ) laterally, in other words perpendicular to the direction of closing, and in this way achieve an opening of the shut-off valve. The container ( 3 ) can comprise any construction known in the prior art.
Patent NO-332772-B1 (NO)
Title: Anvendelse av reseptor-tyrosinkinase-inhibitor for fremstilling av et medikament i enhetsdoseform til behandling av cancer
Inventor: MACHAJEWSKI TIM
IPC: C07D409/14
Filed: 2005-06-07
Abstract: Det beskrives metoder for behandling av cancer ved bruk av 4-amino-5-fluor-3-[6-(4-metylpiperazin-1 -yl)-1 H-benzimidazol-2-yl]kinolin-2(1H)-on. Særlig er metodene effektive for behandling av faste tumorer av leukemi inkludert prostata, colorektal, bryst, multippel myeloma, pankreatisk, små-cellekarsinom, akutt myelogenes leukemi, kronisk myelogenes leukemi og myelo-proliferativ sykdom. Det tilveiebringes videre metoder for å måle mengden av 4-amino-5-fiuor-3-[6-(4-metylpiperazin-l-yl)-lH-benzimidazol-2-yl]kinolin-2(lH)-on og bestemme en metabolsk profil for denne.
Patent NO-331384-B1 (NO)
Title: Optisk aktivt dihydropyridinderivat, preventivt eller terapeutisk middel som inneholder derivatet og anvendelse av derivatet for fremstilling av et medikament for forhindring eller behandling av en sykdom i sirkulasjonssystemet.
Inventor: SADA TOSHIO
IPC: A61P9/12
Filed: 2005-07-22
Abstract: Et optisk aktivt dihydropyridinderivat ifølge foreliggende oppfinnelse er (R)-2-amino-1,4-dihydro-6- metyl-4-(3-nitrofenyl)-3,5-pyridindikarboksylsyre-3-(1-difenylmetylazetidin-3-yl)-ester-5-isopropylester eller et farmasøytisk akseptabelt salt derav.
Patent NO-327945-B1 (NO)
Title: Baerbar drivinnretning
Inventor: HERVING STALE
IPC: B66D1/14
Filed: 2006-10-19
Abstract: Foreliggende oppfinnelse vedrører en bærbar drivinnretning. Nærmere bestemt dreier det seg om en koplingsanordning for sammenkopling av en drivenhet og en girenhet som begge inngår i den bærbare drivinnretning, og hvor girenheten selektivt kan påvirkes for å kunne rotere både medurs og moturs eller for å kunne rotere i kun én av retningene medurs eller moturs.
Patent NO-330552-B1 (NO)
Title: Madrass innbefattende et aktivt varmeopptaks/frigjoringslag i kombinasjon med et dunlag
Inventor: SCHMIDT HANS-ERIK
IPC: A47C27/00
Filed: 2007-12-06
Abstract: Den foreliggende oppfinnelse vedrører en madrass (101), hvilken madrass er avpasset for å bli benyttet av en person under hvile og innbefatter et støtteelement (105), hvilket støtteelement er dekket av et første lag av et materiale (107) med temperaturregulerende egenskaper ved å oppta og frigjøre varme og et andre dunlag. Ved å benytte et materiale med temperaturregulerende egenskaper sammen med et lag med dunfyll (109) oppnås svært gode egenskaper for minimalisering av temperaturvariasjoner.
Patent NO-330474-B1 (NO)
Title: Anordning for utvinning av tidevanns- og bolgeenergi
Inventor: KOLLANDSRUD PER
IPC: F03B13/12
Filed: 2009-08-31
Abstract: Det er beskrevet en anordning for å utvinne energi fra strømning av vann mellom et første og et andre reservoar, hvor det strømmende vannet har en variabel, dominerende strømningsretning. Anordningen omfatter et første strømningsrom for strømmende vann, som kommuniserer med det første reservoaret, og et andre strømningsrom for strømmende vann, som kommuniserer med det andre reservoaret, en turbin, forbundet til en generator og anordnet på en turbinbæresøyle mellom det første og det andre strømningsrommet, idet turbinbæresøylen er anordnet dreibart om en i det vesentlige vertikal akse for å muliggjøre innstilling av turbinens orientering i samsvar med det strømmende vannets dominerende strømningsretning. Fora utnytte energien fra bølger på overflaten, i tillegg til tidevannsvirkningen, omfatter anordningen videre minst en bølgesamler som er anordnet i tilknytning til overflaten av det første eller andre reservoar, minst ett akkumuleringskammer som mottar vann fra bølgesamleren, og en ventilanordning innrettet for å slippe vann fra akkumuleringskammeret ut i det første eller andre strømningsrommet i avhengighet av det strømmende vannets dominerende strømningsretning.
Patent NO-329845-B1 (NO)
Title: Sammenfoldbart elektronisk lesebrett
Inventor: LEM DAG
IPC: G06F15/02
Filed: 2009-09-09
Abstract: Sammenfoldbart elektronisk lesebrett bestående av to separate skjermenheter (1, 2) forbundet med en hengsleanordning (3) med rotasjonsakse (c), slik at skjermenhetene kan foldes 180 grader. Når lesebrettet er foldet ut ligger de to skjermflatene helt inntil hverandre og kan til sammen fremstå som en dobbelt så stor skjermflate. Når lesebrettet er foldet sammen vises en skjermflate (1a, 2a) på hver side av lesebrettet. Skjermenhetenes chassiser (1b, 2b) har føtter (1d, 2d) og motsvarende utsparinger (1e, 2e) som tillater at lesebrettet foldes helt sammen for minimal tykkelse, samtidig som lesebrettet ligger stødig på et plant underlag og viser en plan skjermflate både når det er foldet sammen og når det er foldet ut. I tillegg til at lesebrettet kan vise to forskjellige skjermstørrelser kan det orienteres i både portrett- og landskapsformat, slik at lesebrettet totalt har fire distinkte fysiske konfigurasjoner.
Patent NO-332100-B1 (NO)
Title: Sale for fot pa dyr
Inventor: REVHEIM SVEN
IPC: A01K13/00
Filed: 2010-09-23
Abstract: Såle for foten til et dyr, hvor sålen er konstruert slik at den i bruk opprettholder en stabil og uendret posisjon mellom foten og sålen uavhengig av underlag og uavhengig av om foten er belastet ved nedtråkk eller ubelastet ved oppløft, og videre hvor sålen ved bruk danner et naturlig og dynamisk biomekanisk anatomisk kammer som tar opp friksjonskrefter som oppstår mellom såle og fot på en selvjusterende måte i forhold til de kreftene som blir påført. Sålen har dempnings og energikontroll av krefter forårsaket av indre og ytre påvirkning, dvs. henholdsvis foten til dyret og underlaget som sålen brukes på. Sålen vil i en utførelse med en overdel utgjøre en komplett sko som har mange fordeler i forhold til tidligere kjent teknikk. Eksempelvis har den større bruks- og treningsfleksibilitet slik at den gir optimale egenskaper ved målstyrt trenig, den bidrar til å reduserer skader, den gir kostnadsbesparelser, og den er videre er egnet brukt på nye områder som for eksempel til medisinsk bruk.
Patent NO-333095-B1 (NO)
Title: Gradrennelist
Inventor: JACOBSEN JOSTEIN
IPC: E04D1/36
Filed: 2011-10-28
Abstract: Det omtales en gradrennelist for montering i en gradrenne (50) på et tak, omfattende et langstrakt, hovedsakelig L-formet profillegeme (10) med en nedre del (12) for feste til en tilstøtende gradrennelekte (30) og en oppadragende del (14) innrettet til å ligge i forkant av tilstøtende takstein (40). Den oppadragende delen (14) omfatter en rad av tenner (16) adskilt av mellomliggende slisser (18), og en nedre del (18a) av nevnte slisser (18) strekker seg inn i den nedre delen (12).
Patent PL-137954-B1 (PL)
Title: Method of obtaining hydrophilic,resistant to high temperatures ketone and aldehyde condensation products containing acid groups
IPC: C04B24/30
Filed: 1982-11-09
Abstract: The present invention provides acid group-containing, thermostable, hydrophilic condensation products of aldehydes and ketones, wherein the ketones used are symmetrical or asymmetrical ketones with acyclic aliphatic, araliphatic and/or aromatic radicals, at least one radical being non-aromatic. The present invention also provides processes for the production of these condensation products, which can be used as thickening agents, retention agents, surface-active agents, dispersion agents and/or liquefying agents, especially in aqueous systems.
Patent PL-147123-B1 (PL)
Title: Method of obtaining novel derivatives of dihydropyridazinone
IPC: A61P11/08
Filed: 1985-01-11
Abstract: Compounds of the formula (I): 
<CHEM>
 and pharmaceutically acceptable salts are described, wherein R<1> is hydrogon or methyl and R<2> is hydrogen or C1-4alkyl. These compounds have inotropic, vasodilator, bronchodilating and platelet aggregation inhibiting properties. Pharmaceutical compositions are described as are methods of use. Intermediates and processes for the preparation of the compounds of the formula (I) are described.