,申请号JP19890034153U-传众专利搜索

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发明名称
摘要
申请公布号	JPH02125094(U)	申请公布日期	1990.10.15
申请号	JP19890034153U	申请日期	1989.03.24
申请人		发明人
分类号	E21B10/58;E21C35/18;(IPC1-7):E21C35/18	主分类号	E21B10/58
代理机构		代理人
主权项
地址

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