Perfectionnements aux forets rotatifs à grande vitesse,申请号FRD1048017-传众专利搜索

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发明名称	Perfectionnements aux forets rotatifs à grande vitesse
摘要
申请公布号	FR1048017(A)	申请公布日期	1953.12.18
申请号	FRD1048017	申请日期	1951.08.20
申请人		发明人	KANDLE CHARLES WILLIAM
分类号	E21B10/44	主分类号	E21B10/44
代理机构		代理人
主权项
地址

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