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发明名称
Improvements in or relating to gaseous cementation
摘要
申请公布号
GB527081(A)
申请公布日期
1940.10.02
申请号
GB19390009361
申请日期
1939.03.24
申请人
LOUIS RENAULT
发明人
分类号
C23C8/22
主分类号
C23C8/22
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代理人
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