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发明名称
摘要
申请公布号
JPS5070732(U)
申请公布日期
1975.06.23
申请号
JP19730125384U
申请日期
1973.10.31
申请人
发明人
分类号
E21D9/08;A47L9/26;B65H57/00;E21D9/10;E21D11/40;(IPC1-7):E21D9/10
主分类号
E21D9/08
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代理人
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地址
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