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发明名称
Improvements in the carbonizing of metal surfaces
摘要
申请公布号
GB347267(A)
申请公布日期
1931.04.24
申请号
GB19300002556
申请日期
1930.01.24
申请人
WESTINGHOUSE LAMP COMPANY
发明人
分类号
C23C8/34
主分类号
C23C8/34
代理机构
代理人
主权项
地址
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