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发明名称
摘要
申请公布号
JPS5429434(U)
申请公布日期
1979.02.26
申请号
JP19770103425U
申请日期
1977.07.30
申请人
发明人
分类号
E04D13/068;E04D13/08;(IPC1-7):E04D13/08
主分类号
E04D13/068
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