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发明名称
摘要
申请公布号
BE675366(A)
申请公布日期
1966.05.16
申请号
BED675366
申请日期
1966.01.20
申请人
发明人
分类号
B21B1/16;G21C3/08;G21C21/02;G21C21/12;H01B13/00
主分类号
B21B1/16
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代理人
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