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发明名称
摘要
申请公布号
JPS5497699(U)
申请公布日期
1979.07.10
申请号
JP19770172766U
申请日期
1977.12.23
申请人
发明人
分类号
G21C15/22;G21D1/00;G21D5/06;(IPC1-7):G21D1/00
主分类号
G21C15/22
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代理人
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