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法人/股东/高管

发明名称
摘要
申请公布号	JPS6180884(U)	申请公布日期	1986.05.29
申请号	JP19840166369U	申请日期	1984.10.31
申请人		发明人
分类号	E21B10/12;E21B10/22;(IPC1-7):E21B10/22	主分类号	E21B10/12
代理机构		代理人
主权项
地址

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