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发明名称
Method of making work holding devices
摘要
申请公布号
US2210993(A)
申请公布日期
1940.08.13
申请号
US19380190269
申请日期
1938.02.12
申请人
THE WEATHERHEAD COMPANY
发明人
JR. ALBERT J. WEATHERHEAD,
分类号
B23B31/20
主分类号
B23B31/20
代理机构
代理人
主权项
地址
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