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发明名称
摘要
申请公布号
JPS54147020(U)
申请公布日期
1979.10.12
申请号
JP19780043848U
申请日期
1978.04.04
申请人
发明人
分类号
E21D11/08;E04B1/38;E04B1/61;E21D11/38;(IPC1-7):E21D11/38;E04B1/60
主分类号
E21D11/08
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代理人
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地址
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