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发明名称
摘要
申请公布号
JPS56149728(U)
申请公布日期
1981.11.10
申请号
JP19800049747U
申请日期
1980.04.11
申请人
发明人
分类号
E04D1/06;E04D1/00;E04D3/362;(IPC1-7):E04D3/362
主分类号
E04D1/06
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代理人
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