Perforatrice à rotation et à percussion,申请号FRD1040350-传众专利搜索

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发明名称	Perforatrice à rotation et à percussion
摘要
申请公布号	FR1040350(A)	申请公布日期	1953.10.14
申请号	FRD1040350	申请日期	1951.08.06
申请人	WALLRAM HARTMETALL G. M. B. H.	发明人
分类号	E21B6/00	主分类号	E21B6/00
代理机构		代理人
主权项
地址

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