baber/WOPTO huggingface dataset:
Patent HU-200049-B (HU)
Inventor: SEBOEK JANOS
IPC: H04N3/223
Filed: 1988-09-02
Abstract: Die Erfindung betrifft ein Verfahren zum Eliminieren lautstaerkeabhaengiger Bildgroeszenaenderungen, insbesondere von Farbfernsehgeraeten mit 110-Ablenkungs-Bildroehren, vorzugsweise fuer Geraete mit groszer Tonleistung, wobei die Schaltungen des Geraetes von ueber ein Schaltnetzteil stabilisierten Versorgungsspannungen betrieben werden und die Kissenverzerrung der 110-Bildroehre mittels einer aktiven Ost-West-Rasterkorrektur eingestellt wird. Das Wesen des Verfahrens besteht darin, dasz die infolge der AEnderung der Versorgungsspannung der Horizontalablenkschaltung 2 auftretende Bildbreitenaenderung mit Hilfe eines aus der Versorgungsspannungsaenderung der Horizontalablenkschaltung 2 gewonnenen Signals ueber eine Ost-West-Korrekturschaltung 4 durch Regeln der Bildbreite kompensiert wird. Die Erfindung betrifft weiterhin eine Schaltungsanordnung zur Durchfuehrung des Verfahrens, welche ein stabilisiertes Schaltnetzteil 1, eine Horizontalablenkschaltung 2 und eine Vertikalablenkschaltung 3 aufweist, wobei an der Horizontalablenkschaltung 2 eine Ost-West-Korrekturschaltung 4 angeschlossen ist, die einen Verstaerker 41 aufweist. Das Wesen der Schaltungsanordnung liegt darin, dasz zwischen der Versorgungsspannungsklemme 21, der Horizontalablenkschaltung 2 und dem Eingang 41 a des Verstaerkers 41 der Ost-West-Korrekturschaltung 4 - gegebenenfalls ueber eine Diode 46 - ein Kompensationsnetz 5 eingefuegt ist. Fig. 1{lautstaerkeabhaengige Bildgroeszenaenderung; Farbfernsehgeraete; Schaltnetzteil; stabilisierte Versorgungsspannung; Horizontalablenkschaltung; Ost-West-Korrekturschaltung; Vertikalablenkschaltung; Verstaerker; Kompensationsnetz}
Patent HU-196045-B (HU)
Title: Process for separating the geometric isomers of cyclopropanecarboxylic acids
Inventor: BALOG GYULA
IPC: C07C51/487
Filed: 1984-12-07
Abstract: Separation of the geometrical isomers of cyclopropane carboxylic acids of formula (I), wherein R represents alkyl having 1 to 4 carbon atoms or halogen.
Patent HU-203412-B (HU)
Inventor: SZOMBATI JANOS
IPC: G01R27/02
Filed: 1988-10-11
Abstract: A találmány szerinti áramkör legáltalánosabb kiviteli formájában a mérendő áramkör (10) kimenete kettős iránycsatolón (1) keresztül modulált reflexiójú lezárásra (2) csatlakozik, amely utóbbihoz egy alacsony frekven- ciás generátor (3) is van kötve. A kettős iránycsatoló (1) mérőága (M), illetve referenciaága (R) demodulátorokon (4) és egyenirányítókon (5) keresztül egy analóg osztó (6) egy-egy bemenetére kapcsolódik, míg az analóg osztó (6) skalár hálózat analizátoron (9) át a mérendő áramkör (10) bemenetére csatlakozik. A találmány egy előnyös kiviteli formájában a kettős iránycsatoló (1) és, a modulált reflexiójú lezárás (2) közös pontja automatikus szintszabályozó áramkörön keresztül egy vezérelt erősítő (8) egyik bemenetére van kötve, a vezérelt erősítő másik bemenetére a skalár hálózat analizátor (9) csatlakozik, kimenete pedig a mérendő áramkör (10) bemenetére kapcsolódik. (A találmányt legjobban az 1. ábra jellemzi.) 1  1. ábra HU 203 412 B A leírás terjedelme: 3 oldal, 2 rajz -1-
Patent HU-203201-B (HU)
Title: Process for producing antitumoural pharmaceutical composition having synergetic effect
Inventor: EIBL HANSJOERG
IPC: A61K31/08
Filed: 1986-12-04
Abstract: PCT No. PCT/EP86/00705 Sec. 371 Date Oct. 2, 1987 Sec. 102(e) Date Oct. 2, 1987 PCT Filed Dec. 4, 1986 PCT Pub. No. WO87/03480 PCT Pub. Date Jun. 18, 1987.Cytotoxically-effective medicaments containing hexadecylphosphocholine as active material.
Patent IT-1233686-B (IT)
Title: Equipment for the palletisation of cylindrical or truncated cone objects such as spools of textiles
Inventor: PAOLO GUALCHIERANI
IPC: B65B/
Filed: 1989-04-28
Granted: 1992-04-14
Abstract: A device for the palletisation of spools of textiles produced from at least one upper machine includes, coordinated by a programming unit: mechanisms to lift the spools into the horizontal or inclined position to position them on a vertical axis; mechanisms to lift them to a certain level and to lower them before releasing them; supports to bear the said spools in alignment to form a line; at least one trolley to transfer the spools lifted from the lifting mechanism and to set them in a given position on the said supports to form a line; a surface for the pallet to be filled with superimposed layers; as well as mechanisms to take the lines formed on the said supports in succession and transport them onto the pallet to form a first layer and on this, subsequent layers up to completion of the pallet.
Patent LV-15338-B (LV)
Inventor: VANAGA Ilona
IPC: A61K36/48
Filed: 2018-04-17
Abstract: Izgudrojums attiecas uz farmakoloģiju un pārtikas rūpniecību, konkrēti, uz uztura
bagātinātājiem, kuru sastāvā irdabas vielas un kurusvar izmantot muskuļu spēka un slodzestolerances uzlabošanai.
Uztura bagātinātājs satur skuju poliprenolus (Abies sibirica) un no sojas pupiņām (Glycine max (I.) Merr.) iegūtu
fosfolipīdu maisījumu. Poliprenoli ir iestrādāti fosfolipīdu liposomās.
Patent MX-169480-B (MX)
Inventor: STREUBEL HANS
IPC: B22D11/04
Filed: 1987-11-19
Abstract: The invention provides a mold for the continuous casting of steel strip. The mold is arranged with a mold cavity having a longitudinal axis parallel to the casting direction. The width of the cavity in its upstream area is sufficient to provide at least the required minimum spacing between the pouring tube and the walls of the mold. The mold comprises side- and end-walls arranged respectively to define a cavity having three portions, the first being of substantially the same parallelepipedal cross-section as the strip being cast; the second being a flared area in the upper central area of the mold to accommoate a pouring tube, wherein the side-walls are tapered inwardly from the upper part of the mold to a lower point at which the cross-section of the mold approximates the size and shape of the strip being cast; and the third being a strand shell formation initialization zone in the flared area having walls extending in substantial alignment with the longitudinal axis of the mold from the surface level of the molten bath at which the strand shell starts to form, to a point where the strand shell is sufficiently thick to withstand tapering inwardly without wrinkling or rupturing.
Patent NO-147262-B (NO)
Title: Tilsatsmateriale av nikkelsuperlegering i form av traad for minskning av sprekkdannelse ved wolframbuesveising
Inventor: DUVALL DAVID SCOTT
IPC: B23K35/30
Filed: 1977-09-26
Abstract: Tilsatsmateriale av nikkelsuperlegering. i form av tråd for minskning av sprekkdannelse ved wolframbuesveising.
Patent NO-149472-B (NO)
Title: Fremgangsmaate ved fremstilling av p-aminofenol
Inventor: DUNN THOMAS J
IPC: C07C213/02
Filed: 1980-04-25
Abstract: Fremstilling av p-aminofenol ved hydrogenering av nitrobenzen i surt vandig reaksjonsmedium ved hjelp av en katalysator bestående av platina båret påaluminiumoksyd. Bæreren er fortrinnsvis fremstilt ved kalsinering av boemitt ved- 8°Cfortrinnsvis ca. 593°C, og den har fortrinnsvis et spesifikt overflateareal på ca. 230 m 2/g.
Patent NO-156321-B (NO)
Inventor: MEINECKE HELMUT
IPC: B28B7/34
Filed: 1982-05-27
Abstract: 1. A pallet for making concrete roofing tiles in an extrusion process, consisting of an upper shell (10) and a lower shell (20), which are made of pressed sheet steel and welded together, the upper shell (10) having a central bulge (30) extending in longitudinal direction, characterized in that the upper shell (10) has on each of its two longitudinal sides an edge bulge (37 or 39 respectively) and that the lower shell (20) has at least two transverse grooves (40) which extend in their height up to the upper shell (10) and which are connected with the upper shell (10) at flat parts (31) located between the central bulge (30) and the edge bulges (37, 39) by spot welding.
Patent NO-163963-B (NO)
Inventor: GOEDHART MACHIEL
IPC: C11D3/12
Filed: 1984-10-18
Abstract: The use of a layered clay, e.g. a synthetic hectorite, is a rinse aid composition for use after a dishwashing operation significantly reduces the formation of spots and film on the rinsed articles when dry.
Patent NO-164414-B (NO)
Inventor: GLEASON JOHN GERALD
IPC: C07C323/19
Filed: 1986-04-18
Abstract: Intermediates of structure: <CHEM> wherein Y is CO2R10 or CH(R12)CO2R10 in which R10 is an ester protective group and R10 is hydrogen, methyl, methoxy or fluoro, and their use for the preparation of leukotriene antagonists.
Patent NO-165452-B (NO)
Title: Fremgangsmaate og klemring for tett tilkopling av gulvbelegg til gulvsluk.
Inventor: SIEWERTZ ULF
IPC: E03F/
Filed: 1988-07-25
Abstract: Oppfinnelsen går ut på en fremgangsmåte og en anordning for å oppnå tetning mellom et gulvsluk (1) og et gulvbelegg (9) ved hjelp av en klemrlng som presser gulvbelegget (9) nede 1 sluket (1) til anlegg mot slukets Innervegg. Klemrlngen (12) er delt og forsynt med organer for mottagelse av et utpresslngsverktøy (17), Idet et dlstansestykke (20) plasseres 1 den spalte som oppnås ved utpressingen.
Patent NO-173416-B (NO)
Inventor: OLSSON STEFFAN
IPC: H02H3/44
Filed: 1989-02-28
Abstract: The invention concerns a method to control the stops of an intermittantly operating electric motor. The motor current is measured at even intervals and a mean value is created from said values. Actual value is compared with said mean value and gives a signal to stop the motor if actual value deviates from the mean value in a predetermined way. Each new read in value replaces the first in the series.
Patent NO-178436-B (NO)
Inventor: DURANEL LAURENT
IPC: C08F4/656
Filed: 1991-11-05
Abstract: Cocatalyst based on an organic aluminium compound and on an external electron-donor, employed in the catalyst system for the polymerisation of propylene or for its copolymerisation with ethylene or a C4-C12 alpha-olefin, in combination with a catalytic component comprising at least one titanium compound and an internal electron-donor, which are supported on a magnesium halide, characterised in that the external electron-donor consists of the combination of a nonaromatic silane containing two Si-O-C bonds and of a monoether and/or of a silane containing a single Si-O-C bond.
Patent SE-341001-B (SE)
Inventor: FIGIEL F
IPC: B01F3/12
Filed: 1968-07-02
Abstract: 1,210,299. Diamond powder dispersions. ALLIED CHEMICAL CORP. 3 July, 1968 [3 July, 1967], No. 31714/68. Heading C1A. [Also in Division C4] A dispersion, for use as an abrasive lapping composition, for example, comprises 5-15 wt. per cent of shock-formed synthetic diamond powder, whose particles have an average diameter of 7 x 10<SP>-4</SP> to 1 x 10<SP>-2</SP> microns, in a liquid dispersion medium, (said medium preferably having a viscosity of 0À5-100 centipoise), said dispersion being stable for more than 24 hours, a surfactant being present if the surface tension of the medium is less than 35 dyne/cm. and, if the medium is water, the pH being 5-10À2. Such a dispersion may be made by dispersing the diamond using rotating blades which give a high shear stress of at least 0À83 watt/c.c. for at least 2 minutes. The blades, which may be in a rotating blade homogenizer or blender, preferably rotate at 8000-20,000 r.p.m. The dispersion is preferably done at above 40‹ C. The liquid may be water, ethanol, olive oil, glycol, glycerine, hydrocarbons or commercial solvent mixtures. The surfactant may be an alkyl aryl sulphonate. The diamond used preferably has a surface area of 40-400 m.<SP>2</SP>/gm., at least 10% of its surface containing hydroxyl, carboxyl and carbonyl functional groups.
Patent RS-49647-B (RS)
Inventor: ZAKIC PETAR
IPC: A61F6/04
Filed: 2000-08-28
Abstract: Naprava za nameštanje kondoma, namenjena za razvlačenje i širenje kondoma (12) sa prethodno učvršćenim rubom (13) posredstvom stvorenog vakuuma, kada se posle nameštanje naprave (1) sa pripremljenim kondomom (12, 13) na penis, smanjivanjem stvorenog vakuuma ovaj pripoji na penis, naznačena time, što kod jednocilindričnog oblika izvodjenja obuhvata cilindar (2) sa prednjim slobodnim otvorom (6) i zadnjim otvorom (8), nastavljen fiksnim prstenom (4) za rukovanje potrebne debljine odnosno spoljneg prečnika, sa prednjim usekom (15) za postavljanje zaštitnog poklopca (5) kao dela naprave (1), a usek (15) nastavljen je cilindričnom vratom (14) završenim rebrom (7) sa zaobljenim ivicama, za postavljanje kondoma (12, 13), i što kod naprave (1) u višecilindričnom obliku, prvenstveno trocilindričnom obliku izvodjenja obuhvata cilindar (2) na kome su teleskopski navučena, zaptivno sa zaptivnim prstenovima (11), ulazeći jedan u drugi još dva cilindra (2a,3) od kojih je cilindar (2a) izveden sa slobodnim otvorima na obema stranama, dok je cilindr (3) otvoren sa prednje, zatvoren dnom (3a) sa zadnje strane, i što su na krajevima spregnutih cilindara (2, 2a, 2b, 2c) izvedena unutrašnja rebra (19a) kao i spoljna rebra (19b) za naleganje u krajnjem položaju na zaštivne prstenove (11) za sprečavanje njihovog neželjenog rastavljanja pri razvlačenju prstenova (2, 2a, 2b, 2c, 3), dok je na cilindru (2) izveden fiksni prsten (4). Prijava sadrži još 3 zavisna patentna zahteva.
Patent ZA-818085-B (ZA)
Title: A method for unravelling a portion of a textile yarn and a device for carrying out this method
Inventor: NEGATY HINDI GUY
IPC: B65H69/00
Filed: 1981-11-20
Abstract: To unravel a terminal portion of a textile yarn, in particular in preparation for joining that yarn to another one by twisting their ends together, an extremity of the yarn is vibrated to loosen the fibers while a part of the yarn spaced from its end is held fast and the yarn extremity is combed or subjected to an aspirated air stream to remove loose fibers. In a preferred arrangement the air stream also causes vibration of a flexible tongue mounted in an air duct alongside the yarn extremity to oscillate its fibers.
Patent ZA-827369-B (ZA)
Title: Substituted hydroxy-malonic acid diamides,a process for their preparation and their use as pest combating agents
Inventor: FINDEISEN KURT
IPC: C07C233/00
Filed: 1982-10-08
Abstract: 1. Substituted hydroxymalonic acid diamides of the formula (I)  see diagramm : EP0076957,P17,F4  in which R represents alkyl with at least 2 C atoms and chlorine substituted alkyl, optionally substituted alkenyl, optionally substituted cycloalkyl, substituted aryl, or optionally substituted heteroaryl.
Patent ZA-834710-B (ZA)
Title: Substituted azolyl-ketones and-alcohols
Inventor: KRAEMER WOLFGANG
IPC: C07D249/08
Filed: 1983-06-28
Abstract: Substituted azoyl-ketones and -alcohols of the formula   <IMAGE>   in which A is a nitrogen atom or the CH group, B is CO or CH(OH), R1 is alkyl, alkenyl, alkinyl, optionally substituted phenylalkyl, optionally substituted cycloalkyl or optionally substituted cycloalkylalkyl, R2 is optionally substituted cycloalkyl or the grouping -C(CH3)2R3, and R3 is alkyl having more than 2 carbon atoms, alkenyl, alkinyl or the -CH=O group or a derivative thereof, or addition products thereof with acids or metal salts, exhibit plant growth regulating and fungicidal properties, several intermediates therefor are new.
Patent ZA-839357-B (ZA)
Title: A liquid fuel with pulverized solid fuel,oil residues and water basis,the process for preparing same and,application thereof in boilers or industrial ovens
Inventor: CRESPIN PIERRE
IPC: F23C1/10
Filed: 1983-12-15
Abstract: A fluid fuel mixture is formed of a suspension of a pulverized solid fuel and of at least one aqueous phase representing from 15 to 40 percent of the mixture before an optional incorporation of an additive. The mixture can comprise, as a supplement to particle-size fractions of the pulverized solid fuel, or as a replacement for some of these fractions, additional particle-size fractions produced from heavy petroleum residues of a natural or synthetic origin which are solid at the temperature at which the invention is practiced. The fluid fuel mixture may be used, for example, in boilers, industrial furnaces, or gasification reactors.
Patent ZA-854690-B (ZA)
Title: Process for the production of a cartridge of discardable casing for the preparation of a string of skin-less sausages,and the cartidge thus obtained
Inventor: VINOKUR ISAAC
IPC: B29L23/18
Filed: 1985-06-21
Abstract: A bellows-like hollow member formed of gathered tubular sheathing material, for processing, especially as a peel-skin for the production of small sausages, produced as follows: polypropylene with copolymers is extruded in a smooth foil of three inseparable layers, of which the middle layer is stronger and the two outside layers have a lower melting point. The foil is then stretched to increase its strength, and is formed into a tube with a lengthwise seam along its entire length, formed by overlapping and consolidation of its lengthwise edges. Finally, the tube is gathered bellows-like forming a plurality of folds and forming hollow member, and is simultaneously rotated around its axis so that the lengthwise seam produces a helical path. The tubular sheathing which is obtained by this gathering is of inexpensive material, can be easily peeled from the boiled meat emulsion, can be used without difficulty in sausage machines, and is not sensitive during storage to moisture and high temperatures.
Patent ZA-858740-B (ZA)
Title: Alkyl phenol and amino compound compositions and two-cycle engine oils and fuels containing same
Inventor: DAVIS KIRK EMERSON
IPC: C10L1/2383
Filed: 1985-11-14
Abstract: This invention relates to a composition comprising the combination of (A) at least one alkyl phenol of the formula (R)a-AR-(OH)b (I) wherein each R is independently a substantially saturated hydrocarbon-based group of an average of at least about 10 aliphatic carbon atoms; a, and b are each independently an integer of one up to three times the number of aromatic nuclei present in Ar with the proviso that the sum of a, b and c does not exceed the unsatisfied valences of Ar; and Ar is an aromatic moiety which is a single ring, a fused ring or a linked polynuclear ring having 0 to 3 optional substituents selected from the group consisting essentially of lower alkyl, lower alkoxyl, carboalkoxy methylol or lower hydrocarbon-based substituted methylol, nitro, nitroso, halo and combinations of said optional substituents, and (B) at least one amino compound with the proviso that the amino compound is not an amino phenol. Lubricants and lubricating oil-fuel mixtures for two-cycle engines which include the above compositions, and methods for lubricating two-cycle engines are also within the scope of this invention.
Patent ZA-865008-B (ZA)
Title: Oscillometric blood pressure monitor employing nonuniform pressure decrementing steps
Inventor: RAMSEY MAYNARD III
IPC: A61B5/02
Filed: 1986-07-04
Abstract: The deflation of the inflatable and deflatable cuff worn by a subject during automatic sphygmomanometric measurement is accomplished in unequal size decrements and principally in larger steps than 7 Torr. Each step after detection of the initial oscillations is determined in the first instance by reference to a look-up table or en equation as a function of prevailing cuff pressure. This Base Step dimension is augmented by a factor proportional to the last oscillation amplitude, the factor being increased after detection of the maximum oscillation amplitude. A valve mechanism with at least two different effective orifice sizes is used for deflation, the smaller size effective orifice being used first, to maintain control over the decrement step rate while holding the time for decrement within a predetermined limit of 8 mSec. per Torr, i. e., maintaining the rate above 125 Torr per second. The valve mechanism can consist of two valves with unequal orifice size, or it can consist of two equal orifice size valves to be used singly for providing the effective smaller orifice, or in parallel to provide the effective larger orifice. Alternatively a single variable orifice valve can be used.
Patent ZA-866756-B (ZA)
Title: Substituted 2-phenylhexahydro-1,2,4-triazine-3,5-diones,a process for their preparation,agents containing them,and their use
Inventor: ROESNER MANFRED
IPC: C07D253/06
Filed: 1986-09-05
Abstract: Compounds of the formula I    <IMAGE>  (I)  with n=1-3, R=H, Hal, CF3, alkyl, cycloalkyl, alkyloxy, alkylthio, alkylsulfinyl, alkylsulfonyl, benzylsulfinyl, benzylsulfonyl, nitro, cyano, amino, alkylamino, dialkylamino, piperidino, morpholino, pyrrolidinyl, 4-methyl-1-piperazinyl, acylamino or substituted phenoxy, phenylthio, phenylsulfinyl, phenylsulfonyl, benzoyl, benzoylamino or anilino, with R2=H, alkyl, cycloalkyl, optionally substituted benzyl, alkanoyl or benzoyl and R3=H, alkyl, cycloalkyl or optionally substituted benzyl, at least R2 or R3 not being H, are obtained by alkylation or acylation of a compound II    <IMAGE> (II)  in which R1 is as defined above, with compounds R3X (X=leaving group) or R2Y (Y=leaving group), R2 and R3 being defined as indicated. Compounds I are coccidiostatics.
Patent ZA-868019-B (ZA)
Title: Heterocyclic amino compounds
Inventor: KITCHIN JOHN
IPC: A61K31/40
Filed: 1986-10-22
Abstract: Compounds are disclosed of formula (I): <CHEM>  wherein R is hydrogen, or C1-6 alkyl, C1-6 alkyl substituted by C3-7 cycloalkyl, C3-6 alkenyl, C3-6 alkynyl, C3-7 cycloalkyl, or aralkyl (in which the alkyl moiety contains 1 to 5 carbon atoms); and R<1> and R<2>, each independently represents fluorine or chlorine or one of R<1> and R<2> represents hydrogen;  and the physiologically acceptable salts thereof. The compounds have a selective  alpha 2-adrenorceptor antagonist action and are potentially useful for the treatment of disorders such as depression. The compounds may be prepared, for example by amination of a compound of formula (II): <CHEM> where X is a leaving group, with ammonia or an appropriate amine.
Patent ZA-868556-B (ZA)
Title: Heterocyclic compounds
Inventor: ARCHIBALD JOHN LEHEUP
IPC: A61K31/445
Filed: 1986-11-11
Abstract: The invention relates to compounds of formulaor a salt thereof, wherein =X- is =CH- or =N-, R and R<sup>1</sup> independently represent hydrogen, halogen or lower alkoxy and R<sup>2</sup> is hydrogen or a substituent selected from halogen, lower alkyl, lower alkoxy or halolower alkyl which compounds exhibit psychotropic activity and are useful as anti-depressants.
Patent ZA-878876-B (ZA)
Title: Drag anchor
Inventor: CLAESSON HANS
IPC: B63B/
Filed: 1987-11-26
Abstract: PCT No. PCT/SE87/00560 Sec. 371 Date Jul. 5, 1988 Sec. 102(e) Date Jul. 5, 1988 PCT Filed Nov. 26, 1987 PCT Pub. No. WO88/04256 PCT Pub. Date Jun. 16, 1988.The invention has as its object a drag anchor which is simple to manufacture and provides an effective grip in the bottom material where the anchor is to be used, besides which the anchor can be executed with a very low weight. The invention, which relates most particularly to a drag anchor, the shank of which is pivotally attached to its part which forms the fluke, is characterized in that its part (2) which forms the fluke consists of a hollow body (2) open at its front and rear end in the direction in which the shank (1) is towed, i.e. the direction of movement of the drag anchor, which body forms a mantle enclosing the rear part of the shank with an extension in the direction of movement of the drag anchor.
Patent ZA-885442-B (ZA)
Title: A method for inhibiting the growth of microorganisms in aqueous liquids
Inventor: RAYUDU SREEDHAR RAO
IPC: E04H4/14
Filed: 1988-07-26
Abstract: A method of inhibiting the growth of a microorganism in an aqueous liquid. To the liquid is added an effective amount of an iodoacetone compound of the formula:       In-CH3-n- @-CH3-m-Im   wherein n is 1, 2 or 3 and m is 0, 1, 2 or 3.