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经营范围
发明名称
Kiln apparatus
摘要
申请公布号
US1947496(A)
申请公布日期
1934.02.20
申请号
US19300470975
申请日期
1930.07.26
申请人
THE FREDERICK IRON & STEEL COMPANY
发明人
SCHMIDT JOHN J.
分类号
F27B17/00;F27D3/08
主分类号
F27B17/00
代理机构
代理人
主权项
地址
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