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发明名称
Hot water boiler for a heating system
摘要
申请公布号
US3030938(A)
申请公布日期
1962.04.24
申请号
US19570666578
申请日期
1957.06.19
申请人
HEINRICH VORKAUF
发明人
VORKAUF HEINRICH
分类号
F22B21/36;F24H1/40
主分类号
F22B21/36
代理机构
代理人
主权项
地址
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