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发明名称
Bohrkrone fuer Stossbohrer
摘要
申请公布号
DE864534(C)
申请公布日期
1953.01.26
申请号
DE1949S000582
申请日期
1949.11.01
申请人
SANDVIKENS JERNVERKS AKTIEBOLAG
发明人
HAGLUND DIDRIK WILHELM;EDSTROEM SVEN ERIK
分类号
E21B10/58
主分类号
E21B10/58
代理机构
代理人
主权项
地址
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