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经营范围
发明名称
Suspended refractory roof
摘要
申请公布号
US3045616(A)
申请公布日期
1962.07.24
申请号
US19590862895
申请日期
1959.12.30
申请人
UNITED STATES STEEL CORPORATION
发明人
REICH HAROLD A.
分类号
F27D1/02
主分类号
F27D1/02
代理机构
代理人
主权项
地址
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