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发明名称
Refractory metal composition
摘要
申请公布号
US2197376(A)
申请公布日期
1940.04.16
申请号
US19390258181
申请日期
1939.02.24
申请人
P. R. MALLORY & CO., INC.
发明人
EMMERT KENNETH L.;WIGGS JAMES W.
分类号
C22C5/00;C22C5/06;H01H1/023
主分类号
C22C5/00
代理机构
代理人
主权项
地址
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