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经营范围
发明名称
Refractory tile
摘要
申请公布号
US1962738(A)
申请公布日期
1934.06.12
申请号
US19300501762
申请日期
1930.12.12
申请人
HAHN CARL A;HALL FREDERICK L
发明人
HAHN CARL A.;HALL FREDERICK L.
分类号
F27D1/00;F27D1/04
主分类号
F27D1/00
代理机构
代理人
主权项
地址
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