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发明名称
Mitnehmerklemme fuer Tiefbohrstangen
摘要
申请公布号
DE718167(C)
申请公布日期
1942.03.04
申请号
DE1939N043658D
申请日期
1939.11.05
申请人
N.V. GEBR. STORK. & CO'S FABRIEK VAN HIJSCHWERKTUIGEN
发明人
分类号
E21B3/04
主分类号
E21B3/04
代理机构
代理人
主权项
地址
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