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经营范围
发明名称
Copper silver alloy
摘要
申请公布号
US2196304(A)
申请公布日期
1940.04.09
申请号
US19400312546
申请日期
1940.01.05
申请人
P. R. MALLORY & CO., INC.
发明人
HENSEL FRANZ R.;EMMERT KENNETH L.;WIGGS JAMES W.
分类号
C22C9/00
主分类号
C22C9/00
代理机构
代理人
主权项
地址
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