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发明名称
摘要
申请公布号
JPS574676(Y2)
申请公布日期
1982.01.28
申请号
JP19770084528U
申请日期
1977.06.27
申请人
发明人
分类号
B25D9/00;E04G21/06;E04G21/08;(IPC1-7):E04G21/06
主分类号
B25D9/00
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代理人
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