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发明名称
Convertible water heating system
摘要
申请公布号
US2920608(A)
申请公布日期
1960.01.12
申请号
US19530372350
申请日期
1953.08.04
申请人
JOHN ORBAN
发明人
ORBAN JOHN
分类号
F22B1/16;F22B1/18;F24D3/02;F24D12/02;F28D21/00
主分类号
F22B1/16
代理机构
代理人
主权项
地址
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