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发明名称
Erweiterungsrollenbohrer
摘要
申请公布号
DE1226963(B)
申请公布日期
1966.10.20
申请号
DE1965S100170
申请日期
1965.10.23
申请人
J. C. SOEDING & HALBACH
发明人
BECHEM KARL-GUENTHER
分类号
E21B10/28
主分类号
E21B10/28
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代理人
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