申请人 |
DEFARES, PETER BERNARD, DRIEBERGEN, NL;WILLIGEN, CORNELIS ADRIAAN DE, KATWIJK, NL;VERVEEN, EDUARD THEODORUS, AMSTERDAM, NL |
发明人 |
DEFARES, PETER BERNARD, DRIEBERGEN, NL;WILLIGEN, CORNELIS ADRIAAN DE, KATWIJK, NL;VERVEEN, EDUARD THEODORUS, AMSTERDAM, NL |