申请人 |
BALYASNIKOV BORIS NIKOLAEVICH,SU;SVERDLOV YAKOV BORISOVICH,SU;PARFENOV ALEKSANDR MIKHAJLOVICH,SU;KOKOVASHIN ALEKSEJ PETROVICH,SU |
发明人 |
BALYASNIKOV BORIS NIKOLAEVICH,SU;SVERDLOV YAKOV BORISOVICH,SU;PARFENOV ALEKSANDR MIKHAJLOVICH,SU;KOKOVASHIN ALEKSEJ PETROVICH,SU |