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发明名称
Silver bearing
摘要
申请公布号
US2294404(A)
申请公布日期
1942.09.01
申请号
US19400353672
申请日期
1940.08.22
申请人
P. R. MALLORY & CO., INC.
发明人
HENSEL FRANZ R.;LARSEN EARL I.
分类号
C22C1/04
主分类号
C22C1/04
代理机构
代理人
主权项
地址
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