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经营范围
发明名称
Copper alloy
摘要
申请公布号
US2139497(A)
申请公布日期
1938.12.06
申请号
US19370137987
申请日期
1937.04.20
申请人
P. R. MALLORY & CO., INC.
发明人
HENSEL FRANZ R.;LARSEN EARL I.
分类号
C22C9/06
主分类号
C22C9/06
代理机构
代理人
主权项
地址
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