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发明名称
Positioning means for tube mill mandrels
摘要
申请公布号
US2361619(A)
申请公布日期
1944.10.31
申请号
US19430505235
申请日期
1943.10.06
申请人
NATIONAL TUBE COMPANY
发明人
FINDLATER STEVENSON
分类号
B21B25/02
主分类号
B21B25/02
代理机构
代理人
主权项
地址
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