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发明名称
摘要
申请公布号
JPS54160946(U)
申请公布日期
1979.11.10
申请号
JP19780059857U
申请日期
1978.04.28
申请人
发明人
分类号
E04F15/02;E04B1/00;E04F15/00;(IPC1-7):E04B1/00
主分类号
E04F15/02
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代理人
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