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发明名称
Method of making fittings
摘要
申请公布号
US2674786(A)
申请公布日期
1954.04.13
申请号
US19510207002
申请日期
1951.01.20
申请人
THE WEATHERHEAD COMPANY
发明人
CRAWLEY CHARLES H.
分类号
B21C37/28
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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