申请人 |
INSTITUT ELEKTROSVARKI IMENI |
发明人 |
V. D. KOVALEV, V. E. PATON, V. Y. DUBOVETSKY, V. R. LASHKEVICH, P. A. VARENCHUK, F. M. VINOGRADSKY, A. I. CHVERTKO, A. M. NOVIKOV, V. V. TISCHENKO ET L. G. JUROV;PATON V E;DUBOVETSKY V Y;LASHKEVICH V R;VARENCHUK P A;VINOGRADSKY F M;CHVERTKO A I;NOVIKOV A M;TISCHENKO V V;JUROV L G |