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发明名称
Ratioed air control for steam heating systems
摘要
申请公布号
US2270510(A)
申请公布日期
1942.01.20
申请号
US19400339601
申请日期
1940.06.10
申请人
COX HARRISON F
发明人
COX HARRISON 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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