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经营范围
发明名称
Combined room heating and warm water preparing apparatus
摘要
申请公布号
US3171387(A)
申请公布日期
1965.03.02
申请号
US19570642588
申请日期
1957.02.26
申请人
发明人
分类号
F24H1/52
主分类号
F24H1/52
代理机构
代理人
主权项
地址
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