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发明名称
摘要
申请公布号
JPS55119862(U)
申请公布日期
1980.08.25
申请号
JP19790020107U
申请日期
1979.02.19
申请人
发明人
分类号
E04H17/14;E04H17/16;(IPC1-7):E04H17/16
主分类号
E04H17/14
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