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发明名称
摘要
申请公布号
JPS4835553(Y1)
申请公布日期
1973.10.25
申请号
JP19680108059U
申请日期
1968.12.12
申请人
发明人
分类号
E04H12/20;(IPC1-7):E04H12/20
主分类号
E04H12/20
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代理人
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地址
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