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经营范围
发明名称
Preparation of metal carbides
摘要
申请公布号
GB951416(A)
申请公布日期
1964.03.04
申请号
GB19610014526
申请日期
1961.04.21
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
分类号
C01B31/30
主分类号
C01B31/30
代理机构
代理人
主权项
地址
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