BG45260
V'LCHEV,PET'R V.,BG, BUJUKLIEV,GEORGI S.,BG, PETROV,PET'R S.,BG, NIKOLOV,TODOR G.,BG, PRIMOV,KALIN T.,BG, LJAKOV,NEDJALKO K.,BG, KHARALAMPIEV,GEORGI A.,BG, MJUFTIEV,V'LCHO P.,BG
Year of Publication 15.05.1989
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Year of Publication 15.05.1989
Patent
BG44908
V'LCHEV,PET'R V.,BG, BUJUKLIEV,GEORGI S.,BG, PETROV,PET'R S.,BG, NIKOLOV,TODOR G.,BG, PRIMOV,KALIN T.,BG, LJAKOV,NEDJALKO K.,BG, KHARALAMPIEV,GEORGI A.,BG, MJUFTIEV,V'LCHO P.,BG
Year of Publication 15.03.1989
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Year of Publication 15.03.1989
Patent