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11Kalvins Ivars. Fungicide. SU1678270, 23.09.1991.      

12Simhovics Boriss; Trapencieris Peteris; Pshennikova Maija; Antsena Irene; Lukevics Edmunds; Bremanis Gunars; Meerson Feliks; Kalvins Ivars; Abdikaliev Nurlan. Ethyl-3-(2-ethyl-2,2-dimethylhydrazinium)-propionate salts. SU1680693, 30.09.1991.      

13Kalvins Ivars; Bremanis Gunars; Meerson Feliks; Abdikaliev Nurlan; Trapencieris Peteris; Psennikova Geb; Ancena Irena; Lukevics Edmunds; Simhovics Boriss. Ethyl-3-(2,2-dimethyl-2-ethylhydrazonium)propionate-iodide with anti-arrhythmic activity. SU1680693, 30.09.1991.      

14Bisenieks Egils; Uldrikis Janis; Barmenkova Natalia; Polis Janis; Duburs Gunars; Ivanov Evgenij; Ponomareva Tatjana; Merkusev Gennadij; Jakubovskij Lipskij Jurij; Gigieny Radiatsionnoj. Adamantine ethers 2,6-Dimethyl-1,4-dihydropiridine-3,5-dicarbonic acid with radio protective .... SU1680696, 30.09.1991.      

15Poikans Janis; Bisenieks Egils; Gurevics Viktors; Mihailova Irina; Tirzits Gunars; Uldrikis Janis; Duburs Gunars. 2-(2,6-Dimethyl-3,5-diethoxycarbonyl-1,4-dihidropyridine-4-carboxamido)-ethanesulphoacid sodium.... SU1685934, 23.10.1991.      

16Chupakhin Oleg; Charushin Valery; Petrova Galina; Ponizovsky Mikhail; Baklykov Vasily; Duburs Gunars; Bisenieks Egils; Uldrikis Janis; Kiselev Oleg; Ilienko Vera; Platonov Vitaly; Guseva Valentina; Politekhn Ural. Bornyl and isobornyl esters of carboxylic acids of condensed tetrahydroquinoxalines. EP0456843, 21.11.1991.      

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