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发明名称
Steam heating system
摘要
申请公布号
US2532550(A)
申请公布日期
1950.12.05
申请号
US19480028322
申请日期
1948.05.21
申请人
THE HERMAN NELSON CORPORATION
发明人
HUBBARD ARTHUR F.
分类号
F24D1/00
主分类号
F24D1/00
代理机构
代理人
主权项
地址
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