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发明名称
Method of making a two-part ball construction
摘要
申请公布号
US2625736(A)
申请公布日期
1953.01.20
申请号
US19460658775
申请日期
1946.04.01
申请人
THE COLUMBUS AUTO PARTS COMPANY
发明人
KLAGES REYNOLD E.
分类号
B21D53/40
主分类号
B21D53/40
代理机构
代理人
主权项
地址
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