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发明名称
ROLL REDUCTION OF TUBING
摘要
申请公布号
CA934583(A)
申请公布日期
1973.10.02
申请号
CA19700071965
申请日期
1970.01.13
申请人
WESTINGHOUSE CANADA LTD
发明人
NICHOLSON A;HOWIESON J
分类号
B21B21/00;B21C3/08;B21C3/12
主分类号
B21B21/00
代理机构
代理人
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地址
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