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经营范围
发明名称
Aluminum alloy
摘要
申请公布号
US2290016(A)
申请公布日期
1942.07.14
申请号
US19410389020
申请日期
1941.04.17
申请人
THE NATIONAL SMELTING COMPANY
发明人
BONSACK WALTER
分类号
C22C21/10
主分类号
C22C21/10
代理机构
代理人
主权项
地址
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