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发明名称
Water heater
摘要
申请公布号
US1887196(A)
申请公布日期
1932.11.08
申请号
US19300469949
申请日期
1930.07.23
申请人
DESMOND JOHN D
发明人
DESMOND JOHN D.
分类号
F24H1/44
主分类号
F24H1/44
代理机构
代理人
主权项
地址
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