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经营范围
发明名称
Blast furnace tuyere
摘要
申请公布号
US2074507(A)
申请公布日期
1937.03.23
申请号
US19350052370
申请日期
1935.11.30
申请人
HENRY JOHN B
发明人
HENRY JOHN B.
分类号
C21B7/16
主分类号
C21B7/16
代理机构
代理人
主权项
地址
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