,申请号JP19840197964U-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	JPS61116889(U)	申请公布日期	1986.07.23
申请号	JP19840197964U	申请日期	1984.12.29
申请人		发明人
分类号	E21B3/02;E21B3/00;E21B3/025;E21B7/20;(IPC1-7):E21B3/00;E21B7/22	主分类号	E21B3/02
代理机构		代理人
主权项
地址

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