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经营范围
发明名称
Ventil fuer Kolben-Verdichter und Pumpen
摘要
申请公布号
DE544840(C)
申请公布日期
1932.02.22
申请号
DE1931M114686D
申请日期
1931.03.28
申请人
NEUMAN & ESSER;DIPL.-ING. BRUNO SOMMERFELDT
发明人
分类号
F16K15/08
主分类号
F16K15/08
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代理人
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