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发明名称
摘要
申请公布号
LU40285(A1)
申请公布日期
1961.08.21
申请号
LUD40285
申请日期
1961.06.20
申请人
发明人
分类号
F16K3/18;F16K3/30;F16K31/528;G21C13/02;G21D1/02
主分类号
F16K3/18
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代理人
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