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经营范围
发明名称
Improvements in and relating to shaft furnaces
摘要
申请公布号
GB346817(A)
申请公布日期
1931.04.15
申请号
GB19300001435
申请日期
1930.01.15
申请人
ALBERT HILHOUSE BONE;ERNST HILGERS
发明人
分类号
C21B7/00
主分类号
C21B7/00
代理机构
代理人
主权项
地址
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