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发明名称
摘要
申请公布号
FR2062056(A5)
申请公布日期
1971.06.25
申请号
FR19690034506
申请日期
1969.10.09
申请人
BRETAGNE FORGES LAMINOIR
发明人
分类号
B63B21/44;(IPC1-7):B63B21/00
主分类号
B63B21/44
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代理人
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