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发明名称
Tieflochbohrhammer
摘要
申请公布号
DE1198759(B)
申请公布日期
1965.08.19
申请号
DE1954J024499
申请日期
1954.04.20
申请人
INGERSOLL-RAND COMPANY
发明人
MORRISON WILLIAM A.
分类号
E21B4/06
主分类号
E21B4/06
代理机构
代理人
主权项
地址
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