VALVE CONTROL MECHANISM FOR IMPACT DRILLING TOOL,申请号JP19790057948-传众专利搜索

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发明名称	VALVE CONTROL MECHANISM FOR IMPACT DRILLING TOOL
摘要
申请公布号	JPS54150803(A)	申请公布日期	1979.11.27
申请号	JP19790057948	申请日期	1979.05.11
申请人	SCHMIDT PAUL	发明人	PAURU SHIYUMITSUTO
分类号	E21B7/26;E21B4/14;E21B21/10	主分类号	E21B7/26
代理机构		代理人
主权项
地址

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