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发明名称
Expansible mandrel mechanism
摘要
申请公布号
US3086728(A)
申请公布日期
1963.04.23
申请号
US19600042066
申请日期
1960.07.11
申请人
NATIONAL STEEL CORPORATION
发明人
MARTT JUDSON W.
分类号
B21C47/30;B65H75/24
主分类号
B21C47/30
代理机构
代理人
主权项
地址
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