申请人 |
EWERS, ROLF;SPASSOVA, ELSE |
发明人 |
ANDREEV, ANDREY IVANOV;TCHAKALSKI, KIRIL RANGUELOV;KIROV, GUEORGUI NIKOLOV;DRAMOV, SAVA ASSENOV;VELICHKOVA, VELITCHKA ALEXANDROVA;DJEROV, DIMITAR ASSENOV;JORDANOVA, MAGARITA NIKOLOVA;IVANOV, EMIL STOIMENOV;BAUMANN, ARNULF |