申请人 |
ASTAKHOV LEONID SEMENOVICH,SU;IVANENKO ALEKSANDR IVANOVICH,SU;SMIRNOV VALENTIN GEORGIEVICH,SU;ESTERKIN DAVID NAUMOVICH,SU |
发明人 |
ASTAKHOV LEONID SEMENOVICH,SU;IVANENKO ALEKSANDR IVANOVICH,SU;SMIRNOV VALENTIN GEORGIEVICH,SU;ESTERKIN DAVID NAUMOVICH,SU |