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发明名称
Hard refractory metal boride compositions and their production
摘要
申请公布号
GB790917(A)
申请公布日期
1958.02.19
申请号
GB19540017592
申请日期
1954.06.15
申请人
AMERICAN ELECTRO METAL CORPORATION
发明人
分类号
C22C29/14
主分类号
C22C29/14
代理机构
代理人
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