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发明名称
Collapsible mandrel
摘要
申请公布号
US2335602(A)
申请公布日期
1943.11.30
申请号
US19410414150
申请日期
1941.10.08
申请人
E. W. BLISS COMPANY
发明人
NASH LEONARD W.;MARTIN GEORGE A.
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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