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发明名称
摘要
申请公布号
JPS54166132(U)
申请公布日期
1979.11.21
申请号
JP19780063878U
申请日期
1978.05.15
申请人
发明人
分类号
E01D11/00;E01D1/00;E01D2/00;E01D11/02;E01D19/02;F16F15/00;F16F15/02;F16F15/023;(IPC1-7):E01D11/00
主分类号
E01D11/00
代理机构
代理人
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