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发明名称
摘要
申请公布号
JPS52152509(U)
申请公布日期
1977.11.18
申请号
JP19760061439U
申请日期
1976.05.15
申请人
发明人
分类号
E04F13/08;E04B1/61;E04B1/66;E04B1/684;(IPC1-7):E04B1/54
主分类号
E04F13/08
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