,申请号JP19770013483-传众专利搜索

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法人/股东/高管

发明名称
摘要
申请公布号	JPS5611039(B2)	申请公布日期	1981.03.11
申请号	JP19770013483	申请日期	1977.02.09
申请人		发明人
分类号	E21B7/02;E21B7/26	主分类号	E21B7/02
代理机构		代理人
主权项
地址

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