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发明名称
Ventil fuer hydraulische Grubenstempel
摘要
申请公布号
DE973341(C)
申请公布日期
1960.01.28
申请号
DE1951M008859
申请日期
1951.03.13
申请人
MASCHINENFABRIK EWALD WIEMANN
发明人
WIEMANN EWALD;WENGELER FRITZ
分类号
E21D15/51
主分类号
E21D15/51
代理机构
代理人
主权项
地址
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