baber/WOPTO huggingface dataset:
Patent IE-45954-B1 (IE)
Title: A circuit arrangement for preventing acoustic feedback in network communication system
IPC: H04R3/02
Filed: 1977-12-21
Abstract: This hands-free telephone prevents acoustic feedback between its speaker and microphone by attenuating either the transmission or receive path under the control of a corresponding pair of counters (computers), each counter sensing the signal divided and digitized from its corresponding path. An increase in counted pulses indicates feedback and causes a counter to more quickly reach a predetermined counter state (count), to trigger attenuation (damping) before it can be reset (restored) to zero by the other counter.
Patent IE-44271-B1 (IE)
Title: Device for blood-typing
IPC: G01N33/50
Filed: 1976-12-22
Abstract: Apparatus for blood-typing comprises a sampler, a reagent recipient, peristaltic pumps serving for the delivery of the reagents and the materials to be examined, a mixer, reactors, a sample-placing device, elements for the control of volume and means for washing. The mixer is formed as a flattened tube led in a helical line. Before such tube there is a connection for introduction of enzyme. Means for removal of agglutinate test result are provided. The elements serving for the control of volume are formed by telescopic tubes of variable length. The device is much simpler than heretofore known devices. It enables achievement of high operational safety and reduction of production and operation cost.
Patent IE-63084-B1 (IE)
Title: New pharmaceutical preparation and process for its preparation
Inventor: RAGNARSSON GERT ANDERS
IPC: A61K9/22
Filed: 1988-09-27
Abstract: Preparation giving a controlled and extended release of both a dihydropyridine, e.g. felodipine and a beta -adrenoreceptor antagonist, namely metoprolol as well as a method for the manufacture of the new preparation.
Patent IE-72513-B1 (IE)
Title: New process for the preparation of nojirimycin and related compounds
Inventor: ANZEVENO PETER BIAGIO
IPC: A61P3/08
Filed: 1990-12-19
Abstract: The present invention relates to an efficient new route for the preparation of (+)-nojirimycin and (+)-1-deoxynojirimycin which involves the steroselective reductive amination of 1,2-O-isopropylidene-5-oxo- alpha -D-glucuronolactone. The reductive amination uses particular oximes of the 5-oxo compound.
Patent LU-100653-B1 (LU)
Title: Multifunctional spoon
Inventor: WU JIANHUI
IPC: A47G21/04
Filed: 2017-12-22
Granted: 2018-05-16
Abstract: The present invention relates to the technical field of daily necessities, and in particular to a multifunctional spoon. The multifunctional spoon comprises a spoon head connected with a spoon handle. The spoon head is connected with the lower end of a spoon handle inner pipe through a clamping groove, and a spoon handle outer pipe is nested on the periphery of the spoon handle inner pipe and wraps the upper end of the spoon handle inner pipe; the upper end and the lower end of the inner wall of the spoon handle inner pipe each are provided with a clamping groove matched with a vertical protrusion at the lower end of a lock handle button, and the upper portion of the spoon handle outer pipe is provided with a cup brush support with a hook. A spherical cup brush is connected with the cup brush support through close fit, and a spring matched with the lock handle button is fixed inside the spoon handle outer pipe, and a spherical sponge brush head is disposed in the cup brush support with a cup brush lid. The spherical cup brush in the cup brush support can be dismantled to be cleaned, and the cup brush lid is connected with the cup brush support through a thread. The multifunctional spoon is used for preparing liquid beverages.
Patent LU-500156-B1 (LU)
Title: Packaging box with product distributing mechanism
Inventor: XIA ZHILIANG
IPC: B65D57/00
Filed: 2021-05-12
Granted: 2022-11-16
Abstract: The invention relates to the technical field of packaging boxes, in particular, to a packaging box with product distributing mechanism, which includes a packaging box body, a packaging box side cover plate and a packaging box top cover plate, wherein both sides of a top end of the packaging box body are fixedly mounted with the packaging box side cover plate, and a back surface of the top end of the packaging box body is fixedly mounted with the packaging box top cover plate; an inner wall of the packaging box body is fixedly mounted with a mounting base, a side of an inner part of the mounting base is provided with grooves, and an inner part of the groove is fixedly mounted with a shaft; an outer wall of the shaft is sleeved with a shaft sleeve, and an outer wall of the shaft sleeve is fixedly mounted with a partition. In the present invention, the mounting base and the partition are provided for realizing rotation so that a space inside the packaging box body can be divided into equal parts, thereby classifying and placing items for facilitating subsequent classification between items while avoiding mixing of items during transportation, with simple operation and convenient use.
Patent LU-500247-B1 (LU)
Title: Method for Measuring Adiabatic Shear Temperature Rise Based on High-Speed Infrared Temperature Measuring Device
Inventor: CHEN HAOSEN
IPC: G01N3/30
Filed: 2021-06-04
Granted: 2021-12-06
Abstract: The present invention provides a method for measuring adiabatic shear temperature rise based on a high-speed infrared temperature measuring device, including the following steps of: using the high-speed infrared temperature measuring device to measure the temperature change of a specimen adiabatic shear region during a dynamic loading test, and finally obtaining a load-displacement relation and a load-temperature- change with time a shear region of a specimen during adiabatic shear via synchronization of temperature-time and load-time. By combining the high-speed infrared temperature measuring device with a Hopkinson pressure bar experimental system, the method describes that the high-speed infrared temperature measuring device is used to measure the temperature change of the specimen during adiabatic shear deformation.
Patent LU-501035-B1 (LU)
Title: Verfahren und System zum Absichern des Austausches von Daten in einem Netzwerksystem für industrielle Steuerungen
Inventor: OSTER VIKTOR
IPC: H04L12/46
Filed: 2021-12-17
Granted: 2023-06-20
Abstract: Die vorliegende Erfindung betrifft ein Verfahren zum Übertragen von Daten über ein physikalisches Netzwerk für industrielle Steuerungen, aufweisend eine Mehrzahl von Netzwerkteilnehmern. Für den Fall, dass sicherheitsrelevante Daten zwischen wenigstens einem ersten und zweiten Netzwerkteilnehmer aus der Mehrzahl von Netzwerkteilnehmern übertragen werden sollen, umfasst das Verfahren folgende Schritte: - Übertragen dieser sicherheitsrelevanten Daten zwischen dem ersten und zweiten Netzwerkteilnehmer zumindest über eine erste Netzwerkverbindung eines ersten virtuellen Netzwerks in dem physikalischen Netzwerk, - Überprüfen, ob das Übertragen der sicherheitsrelevanten Daten über die erste Netzwerkverbindung störungsfrei erfolgt, - im Falle eines Feststellens eines nicht störungsfreien Übertragens über die erste Netzwerkverbindung Umschalten auf eine zweite, von der ersten verschiedenen Netzwerkverbindung eines zweiten virtuellen Netzwerks in dem physikalischen Netzwerk zum Übertragen dieser sicherheitsrelevanten Daten zwischen dem ersten und zweiten Netzwerkteilnehmer. Ferner betrifft die vorliegende Erfindung ein System, welches zum Durchführen dieser Verfahrensschritte eingerichtet ist und eine Diagnoseeinheit zum Überprüfen eines störungsfreien Übertragens umfasst.
Patent LU-501684-B1 (LU)
Title: Eine einfach zu installierende SmartHome LED-Lampe mit Farbwechsel
Inventor: ZHOU FUZHEN
IPC: F21Y115/10
Filed: 2020-09-16
Granted: 2022-03-22
Abstract: Die Ausführungsform der vorliegende Erfindung, die das technische Gebiet der LED-Lampen betrifft, offenbart eine einfach zu installierende SmartHome LED-Lampe mit Farbwechsel, umfassend einen Montagesockel und einen LED-Körper, der auf dem Montagesockel montiert ist, wobei der LED-Körper eine LED-Lampenfassuang und einen LED-Lampenkörper, der am unteren Ende der LED-Lampenfassung angebracht ist, aufweist; wobei am Montagesockel ein Aufnahmehohlraum vorgesehen ist, wobei die LED- Lampenfassung, die sich in den Aufnahmehohlraum erstreckt, durch den ersten Montagemechanismus positioniert und durch den zweiten Montagemechanismus befestigt wird. Die Ausführungsform der vorliegenden Erfindung kann entsprechend der Drehrichtung der Befestigungsschraube die Position des ersten rechteckigen Blocks im ersten rechteckigen Hohlraum einstellen, so dass der Befestigungspfosten in die entsprechende Befestigungsnut eingebettet werden kann, um den Effekt des Abstützens und Positionierens der LED-Lampenfassung zu erreichen, die sich in den Aufnahmehohlraum erstreckt.
Patent NO-300837-B1 (NO)
Title: Kran, fortrinnsvis en offshore-kran
Inventor: HERZOG CHRISTIAN
IPC: B66D1/58
Filed: 1990-03-08
Abstract: Kran, fortrinnsvis en offshore-kran, omfattende en kranarm som er montert på en dreibar søyle eller støtte og er forsynt med et kranarmmasklneri for å skaffe en vippebevegelse. Kranen omfatter også en heisevinsj (2) med en innretning til å hindre overbelastning, hvor innretningen omfatter en sikkerhetsventil (23) som, som en reaksjon på en vippelast som overskrider en tillatt verdi,. forbinder en hydraulikkakkumulator (16). med en hydraulikksylinder (4) for lesning av bremsen (3) av heisemekanismen og med sugesiden av hydraulikkmotoren (1) av heisemekanismen for å kompensere for oljelekkasje. slik at heisetauet (42) kan vikles av fra heisetrommelen (2) som en reaksjon på forekomsten av krefter som er større enn de som tilsvarer det tillatte vippemoment, selv når kranen ikke er i. drift. Det er anordnet en hydraulikkmotor (30) som er tilkoblet en hydraulikkpumpe. (31) . Videre er det anordnet ventiler (24,29) som betjenes av hydraulikkakkumulatoren (16) og er innrettet til å. forbinde hydraulikkmotoren (30) med trykksiden av hydraulikkmotoren (1) av heisemekanismen, hvor den sistnevnte hydraulikkmotor (1) drives som en pumpe under sikkerhets- eller nøddrift.Ventilene (24,29) er også innrettet til å. forbinde hydraulikkpumpen (31) med hydraulikksylinderen (4) til løsning av bremsen (3) og med sugesiden av hydraulikkmotoren (1) av heisemekanismen.
Patent NO-308830-B1 (NO)
Inventor: SCHNEIDER MICHEL
IPC: A61K9/127
Filed: 1994-06-30
Abstract: Disclosed are injectable suspensions of gas filled microbubbles in an aqueous carrier liquid usable as contrast agents in ultrasonic echography. The suspensions comprise amphipathic compounds of which at least one may be a laminarized phospholipid as a stabiliser of the microbubbles against collapse with time and pressure. The concentration of phospholipids in the carrier liquid is below 0.01% wt but is at least equal to or above that at which phospholipid molecules are present solely at the gas microbubble-liquid interface. Also disclosed is a method of preparation of the stable suspensions of air or gas filled microbubbles.
Patent NO-314002-B1 (NO)
Inventor: BLEIBLER ALEXANDER
IPC: E04G23/02
Filed: 1999-09-29
Abstract: Flat strip lamella (10) for reinforcing load-bearing or load transferring building components e.g. concrete, wood, steel, natural stone or masonry. The flat strip lamella (10) has a composite structure consisting of a plurality of parallel aligned, bendable or flexible carrying fibers (26) and a binding matrix (28) joining the carrying fibers to each other and making them shear resistant. The lamella can be attached facewise to the surface of the building component to be reinforced, using adhesive (16). In order to be able to bend the flat strip lamella over corner edges of a building component, the binding matrix (28) consists of a thermoplastic synthetic material.
Patent BR-PI0306322-B1 (BR)
Title: conjunto de rotor com pás para proporcionar sustentação vertical a uma aeronave
Inventor: GERBINO ALLEN J
IPC: B64C27/50
Filed: 2003-09-09
Abstract: "pás retráteis de sustentação de aeronave". conjunto de rotor com pás para prover suspensão vertical a uma aeronave, tendo um cabeçote de rotor de uma variedade de pás, cada pá estando presa em um mecanismo como uma superfície de came, sendo que a movimentação do mecanismo faz com que seja alterada a distância radial entre a ponta mais distante da pá presa e o centro do cabeçote do rotor, diminuindo ou aumentado a extensão da superfície de suspensão. as pás são movidas de uma posição totalmente aberta, fornecendo suspensão máxima, para uma posição retraída, na qual as pás são removidas da corrente de ar. o passo das pás pode ser controlado para alcançar responsividade plena do helicóptero. uma variedade de empenas de estabilização de pás poderá ser posicionada próximo da periferia externa do cabeçote do rotor. quando forem movidas dentro da corrente de ar, o ar em passagem impacta as empenas de estabilização de pás, exercendo pressão e originando o movimento rotacional do conjunto de rotor com pás.
Patent BR-PI0309710-B1 (BR)
Inventor: MOSS DAVID KELLY
IPC: C09K8/74
Filed: 2003-04-18
Abstract: The present invention generally relates to aqueous, acidic compositions thickened with an amidoamine oxide gelling agent and/or viscoelastic surfactant of the general formula I: wherein R<SUB>1 </SUB>is a saturated or unsaturated, straight or branched chain aliphatic group of from about 7 to about 30 carbon atoms, R<SUB>2 </SUB>is a divalent alkylene group of 2-6 carbon atoms which may be linear or branched, substituted or unsubstituted, and R<SUB>3 </SUB>and R<SUB>4 </SUB>are independently C<SUB>1</SUB>-C<SUB>4 </SUB>alkyl or hydroxyalkyl groups or together they form a heterocyclic ring of up to six members, and R<SUB>5 </SUB>is hydrogen or a C<SUB>1</SUB>-C<SUB>4 </SUB>alkyl or hydroxyalkyl group. The aforementioned gelling agents advantageously provide gels that do not undergo phase separation over extended periods of time and exhibit high heat stability. The thickened acid gels of the invention have applications in household and industrial cleaners and degreasers, oilfield stimulation applications and the like.
Patent BR-PI0311178-B1 (BR)
Inventor: PAUL HOWLEY
IPC: C12N5/10
Filed: 2003-05-14
Abstract: The present invention relates to a recombinant poxvirus vector capable of expressing two or more homologous, foreign sequences, which derive from different variants of a microorganism, and which have a homology of 50% or above. The invention further relates to a method for preparing such recombinant poxvirus and the use of such recombinant poxvirus as medicament or vaccine. Additionally, a method for affecting preferably inducing an immune response in a living animal, including a human, is provided.
Patent BR-PI0312818-B1 (BR)
Title: Uso de uma medida do nível do polipeptídeo sflt-1 em uma amostra de uma paciente e uso de uma medida dos níveis de pelo menos dois dos peptídeos sflt1, vegf livre ou polipeptídio pigf livre em uma amostra de um paciente usando um métrico
Inventor: S ANANTH KARUMANCHI
IPC: C07K1/00
Filed: 2003-07-21
Abstract: patente de invenção: uso de um composto capaz de ligar ao receptor flt-1 solúvel (sflt-1), kit para diagnosticar pré-eclâmpsia ou eclâmpsia, método para identificar esse composto e respectiva composição farmacêutica. são revelados neste relatório métodos para diagnosticar pré-eclâmpsia e eclâmpsia. também são revelados neste relatório métodos para tratar pré-eclâmpsia e eclâmpsia usando compostos que aumentam os níveis de vegf ou pigf ou compostos que reduzem os níveis de sfit-1. também são revelados compostos que inibem a ligação de vegf ou pigf a sfit-1 para o tratamento de pré-eclâmpsia e eclâmpsia.
Patent BR-PI0313155-B1 (BR)
Title: composto químico derivado ou análogo de carotenóide, composição farmacêutica, e, uso do composto
Inventor: DAVID G WATUMULL
IPC: A61K31/401
Filed: 2003-07-29
Abstract: "composto químico, composição farmacêutica, métodos para sintetizar um composto químico, para tratar um dano de isquemia-reperfusão, uma doença do fígado, arritmia e célula(s) cancerosa(s) e pré-cancerosa(s), para aumentar a expressão de conexina 43 e uma doença com uma composição química compreendendo um derivado de carotenóide e para reduzir uma proteína c-reativa". método para inibir e/ou melhorar a ocorrência de doenças associadas com espécies de oxigênio reativas espécies de nitrogênio reativas, radicais e/ou não radicais em um indivíduo, assim um indivíduo é administrado com um análogo estrutural de carotenóide, seja sozinho seja em combinação com outro análogo de carotenóide, ou formulação de co-antioxidante. o análogo ou combinação de análogos é administrado de modo que o risco do indivíduo de experimentar doenças associadas com espécies de oxigênio reativas, espécies de nitrogênio reativas, radicais e/ou não radicais pode ser assim reduzido. o análogo ou combinação de análogos pode ser administrado a um indivíduo para a inibição e/ou melhora de dano de isquemia-reperfusão. o análogo ou combinação de análogos pode ser administrado a um indivíduo para a inibição e/ou melhora da doença do fígado. o análogo ou combinação de análogos pode ser administrado a um indivíduo para a inibição e/ou melhora de câncer. o análogo ou combinação de análogos pode ser administrado a um indivíduo para a inibição e/ou melhora de arritmia cardíaca e/ou morte cardíaca súbita. o análogo ou combinação de análogos pode ser administrado a um indivíduo para a inibição e/ou melhora de qualquer doença que envolva a produção de espécies de oxigênio reativas, espécies de nitrogênio reativas, radicais e/ou não radicais. em uma forma de realização, um análogo de astaxantina solúvel em água e/ou dispersível em água é particularmente eficaz. esta invenção ainda inclui composições farmacêuticas compreendendo análogos de carotenóides estruturais seja sozinhos seja em combinação.
Patent BR-0316330-B1 (BR)
Inventor: FECHNER RICHARD
IPC: B22D11/103
Filed: 2003-10-08
Abstract: A vessel acts as an intermediate storage point for molten steel prior to its discharge into a casting mold. The vessel is protected from the impact of incoming molten metal by a tundish (4) which has a cover (4d) which is partially destroyed by the incoming molten metal (3). The tundish is made of a incombustible material. The thin-walled cover is made of the same type of metal as the incoming molten steel and is perforated or incorporates fenestrations. The dish diameter is only slightly larger than the flow of incoming molten metal.
Patent CH-709591-B1 (CH)
Title: Duschkabinenauskleidung.
Inventor: THOMAS WOESTE
IPC: E04F13/08
Filed: 2014-05-05
Abstract: Es soll eine Duschkabinenauskleidung zur Auskleidung mindestens einer Duschkabinenwand einer Duschkabine (2) geschaffen werden, welche einfach, schnell und kostengünstig anbringbar ist, womit ein wasserabweisender Effekt mit wenig Aufwand erreicht wird. Dies wird dadurch erreicht, dass die Duschkabinenauskleidung mindestens ein Verkleidungsblech (202, 202´) umfasst, welches an der Duschkabinenwand vollflächig fugenlos und damit ohne Bildung einer Fuge auf der Fläche der Duschkabinenwand stoffschlüssig befestigbar ist.
Patent CH-707967-B1 (CH)
Title: Instrument d'écriture.
Inventor: RAPHAËL HENRY
IPC: B43K29/087
Filed: 2013-04-25
Abstract: La présente invention concerne un instrument d’écriture comprenant: un corps de préhension (10) à l’intérieur duquel peut prendre place une réserve d’encre, une pointe d’écriture (12) susceptible d’être reliée à la réserve d’encre, un mécanisme horloger (14) logé dans le corps de préhension (10). Selon l’invention, le mécanisme horloger (14) est un mouvement mécanique comprenant une source d’énergie (16), un balancier-spiral (18), un mécanisme d’échappement transmettant par intermittence l’énergie fournie par la source d’énergie (16) au balancier-spiral (18), et un rouage (20) agencé pour entraîner un dispositif d’affichage d’une information horaire (22), visible à la périphérie du corps de préhension (10).
Patent DE-2417075-B1 (DE)
Title: Railway signal lamp safety cct. - has dual-filament lamp switched without contacts from failed to standby filament
IPC: H02J9/00
Filed: 1974-04-08
Abstract: The signal light safety circuit, for railway systems, has the dual-filament signalling lamp switched over without make/break contacts from its failed, i.e. burnt out, main filament to its second, standby filament. The standby filament is bridged by a transformer secondary winding. The transformer primary winding is connected between the first end of the secondary and the main filament. The A.C. supply is passed over two fuses and a variable resistor to the secondary winding second end, i.e. the end connected to the common filament terminal, and to the primary/main filament junction. When the main filament fails, the increased current through the primary causes a sufficiently large voltage in the secondary to light the standby filament.
Patent DE-2613803-B1 (DE)
Title: High molecular wt. alkenylphenol polymers - prepd. by polymerising an alkenyl phenol using a Lewis or Bronsted acid in presence of a nitrile
IPC: C08F12/24
Filed: 1976-03-31
Abstract: Alkenylphenol polymers are made by cationic polymerisation of alkenylphenols in presence of a nitrile using a cationic polymerisation initiator, the nitrile being a satd. aliphatic mononitrile or an aromatic nitrile of b.pt. below 200 degrees C at 760 mmHg. and the concn. of the alkenylphenol in the nitrile soln. is 1-50 wt. % of the nitrile. High m.wt. alkenyl phenol polymers can be prepd. with good reproducibility from a homogeneous soln. in high yield, the prods. being useful starting materials for producing thermosetting resins, high M.W. electrolytic substance, electroconductive treating agent, ion exchange membrane or glass fibre reinforced composite material.
Patent ES-2034880-B1 (ES)
Title: Procedimiento de temple directo de barras laminadas y dispositivo para realizarlo.
Inventor: ALONSO MERINO LEONCIO
IPC: C21D1/63
Filed: 1991-05-03
Granted: 1994-02-01
Abstract: PROCEDIMIENTO DE TEMPLE DIRECTO DE BARRAS DE ACERO LAMINADAS EN TODOS LOS PERFILES, SECCIONES Y DISPOSITIVO PARA REALIZARLO, QUE CONSISTE EN APROVECHAR EL CALOR REMANENTE DE LA LAMINACION PARA PROCEDER SECUENCIALMENTE A LA INMERSION DE LAS BARRAS EN UNA CUBA DE TEMPLE EN LA QUE SE MANTIENE UN CAUDAL DE FLUIDO PERMANENTE, DURANTE UN TIEMPO PREESTABLECIDO Y DE FORMA AUTOMATICA, SIN NECESIDAD DE NUEVO CALENTAMIENTO DE MATERIAL Y CONSIGUIENTEMENTE PRODUCIENDOSE UN INCREMENTO DE LA PRODUCTIVIDAD Y UN IMPORTANTE AHORRO ENERGETICO. EL DISPOSITIVO CUENTA CON UN CAMINO DE RODILLOS CON VOLTEADORES QUE CONDUCEN LAS BARRAS SOBRE UNAS CADENAS DE INMERSION EN EL TANQUE DE TEMPLE, CUYAS CADENAS SE TENSAN Y DESTENSAN A TRAVES DE UN MOTOREDUCTOR, CON EL FIN DE MANTENER EL MATERIAL SUMERGIDO EN EL FLUIDO DURANTE EL TIEMPO CALCULADO EN CADA CASO, EXISTIENDO ADEMAS MEDIOS DE REGULACION Y CONTROL DEL CAUDAL Y SUS NIVELES PRECISOS EN EL TANQUE DE TEMPLE.
Patent ES-2060541-B1 (ES)
Title: Nuevo procedimiento para la sintesis de un derivado de 2-(2-piridilmetilsufinil) bencimidazol, y nuevos productos intermedios obtenidos con el mismo.
Inventor: BUXADE VINAS ANTONIO
IPC: C07D213/61
Filed: 1993-02-26
Granted: 1995-11-16
Abstract: EL METODO, DE ACUERDO CON LA INVENCI6N, ES UN PROCESO MULTI-PASO (ESQUEMA I) PARA PREPARAR 2-(((3-METIL-4-(2,2,2- TRIFLUOROETOXI)-2-PIRIDIL)METIL)SULFINIL)-1H-BENZIMIDAZOL QUE COMPRENDE LOS PASOS SIGUIENTES: PASO A): SUSTITUCION NUCLEOFILA DEL GRUPO Z DEL 2- (((3-METIL-4-Z-2-PIRIDIL)METIL)SULFINIL)-1H-BENCIMIDAZOL POR 2,2,2-TRIFLUOROETANOL; PASO B): OBTENCI6N DEL 2-(((3-METIL-4-Z-2-PIRIDIL)ME- TIL)SULFINIL)-LH-BENCIMIDAZOL POR OXIDACI6N DEL 2-(((3- METIL-4-Z-2-PIRIDIL)METIL)TIO)-LH-BENCIMIDAZOL; PASO C): PREPARACI6N DEL 2-(((3-METIL-4-Z-2-PIRI- DIL)METIL)TIO)-1H-BENCIMIDAZOL A PARTIR DE N-6XIDO DE 2,3- DIMETIL-4-NITROPIRIDINA.