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发明名称
Refractory carbide composition
摘要
申请公布号
US2190477(A)
申请公布日期
1940.02.13
申请号
US19390258190
申请日期
1939.02.24
申请人
P.R. MALLORY & CO., INC.
发明人
HENSEL FRANZ R.
分类号
C22C32/00
主分类号
C22C32/00
代理机构
代理人
主权项
地址
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