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发明名称
摘要
申请公布号
JPS578225(U)
申请公布日期
1982.01.16
申请号
JP19800085329U
申请日期
1980.06.17
申请人
发明人
分类号
E04D3/40;E04B1/64;(IPC1-7):E04D3/40
主分类号
E04D3/40
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