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发明名称
Hard metallic composition and contacts thereof
摘要
申请公布号
US1984203(A)
申请公布日期
1934.12.11
申请号
US19310580729
申请日期
1931.12.12
申请人
P.R. MALLORY & CO., INCORPORATED
发明人
SIEGER GEORGE N.
分类号
B22F3/26;C22C29/06;C22C32/00
主分类号
B22F3/26
代理机构
代理人
主权项
地址
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