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经营范围
发明名称
Stock reel speed control mechanism
摘要
申请公布号
US2664250(A)
申请公布日期
1953.12.29
申请号
US19500163851
申请日期
1950.05.24
申请人
THE NATIONAL MACHINERY COMPANY
发明人
FRIEDMAN JOHN H.
分类号
B21C47/18;B21C47/20;B65H49/34
主分类号
B21C47/18
代理机构
代理人
主权项
地址
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