Dispositif d'alimentation pour perforatrices de roche,申请号FRD855963-传众专利搜索

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发明名称	Dispositif d'alimentation pour perforatrices de roche
摘要
申请公布号	FR855963(A)	申请公布日期	1940.05.24
申请号	FRD855963	申请日期	1939.06.08
申请人	INGERSOLL-RAND COMPANY	发明人
分类号	E21B19/086	主分类号	E21B19/086
代理机构		代理人
主权项
地址

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