Perfectionnements aux marteaux percuteurs,申请号FRD835355-传众专利搜索

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发明名称	Perfectionnements aux marteaux percuteurs
摘要
申请公布号	FR835355(A)	申请公布日期	1938.12.20
申请号	FRD835355	申请日期	1938.03.17
申请人	GAS TOOL PATENTS CORPORATION	发明人
分类号	E21B1/34	主分类号	E21B1/34
代理机构		代理人
主权项
地址

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