NONMAGNETIC STEEL FOR DRILL COLLAR,申请号JP19810142487-传众专利搜索

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发明名称	NONMAGNETIC STEEL FOR DRILL COLLAR
摘要
申请公布号	JPS5845363(A)	申请公布日期	1983.03.16
申请号	JP19810142487	申请日期	1981.09.11
申请人	DAIDO TOKUSHUKO KK	发明人	UEHARA NORIOKI;KIMURA YASUHIRO
分类号	C22C38/00;C21D8/00;C22C38/58;C22C38/60	主分类号	C22C38/00
代理机构		代理人
主权项
地址

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