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发明名称
Dichtheitspruefvorrichtung fuer Ventile, insbesondere fuer Ventile von Gasschutzmasken
摘要
申请公布号
DE687117(C)
申请公布日期
1940.01.24
申请号
DE193600P2609D
申请日期
1936.02.05
申请人
WALTHER POPP
发明人
分类号
A62B27/00
主分类号
A62B27/00
代理机构
代理人
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