Well surveying instrument,申请号US19560617522-传众专利搜索

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发明名称	Well surveying instrument
摘要
申请公布号	US3008241(A)	申请公布日期	1961.11.14
申请号	US19560617522	申请日期	1956.10.22
申请人	ICHIRO MURATA	发明人	MURATA ICHIRO
分类号	E21B47/022	主分类号	E21B47/022
代理机构		代理人
主权项
地址

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