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发明名称
Furnace closure
摘要
申请公布号
US2977106(A)
申请公布日期
1961.03.28
申请号
US19570657929
申请日期
1957.05.08
申请人
SELAS CORPORATION OF AMERICA
发明人
DUFF JOHN
分类号
A21B3/02;F27D1/18;F27D99/00
主分类号
A21B3/02
代理机构
代理人
主权项
地址
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