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发明名称
Dispositif d'avancement pour moteurs d'outils à percussion
摘要
申请公布号
FR707355(A)
申请公布日期
1931.07.07
申请号
FRD707355
申请日期
1930.12.10
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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