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经营范围
发明名称
Improvements relating to carbon iron alloys
摘要
申请公布号
GB431777(A)
申请公布日期
1935.07.08
申请号
GB19330031145
申请日期
1933.11.08
申请人
HEINRICH NIPPER
发明人
分类号
C21D8/00
主分类号
C21D8/00
代理机构
代理人
主权项
地址
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