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发明名称
Dispositif d'avance pour machines à percussion
摘要
申请公布号
FR738127(A)
申请公布日期
1932.12.21
申请号
FRD738127
申请日期
1932.06.03
申请人
INGERSOLL-RAND COMPANY
发明人
分类号
E21B44/08
主分类号
E21B44/08
代理机构
代理人
主权项
地址
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