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法人/股东/高管

发明名称
摘要
申请公布号	JPS54146038(U)	申请公布日期	1979.10.11
申请号	JP19780042423U	申请日期	1978.04.03
申请人		发明人
分类号	E21F16/02;E21D11/38;(IPC1-7):E21D11/38	主分类号	E21F16/02
代理机构		代理人
主权项
地址

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