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发明名称
摘要
申请公布号
JPS5671852(U)
申请公布日期
1981.06.13
申请号
JP19790155114U
申请日期
1979.11.07
申请人
发明人
分类号
E04H17/16;(IPC1-7):E04H17/16
主分类号
E04H17/16
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代理人
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