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发明名称
Water heater
摘要
申请公布号
US2090003(A)
申请公布日期
1937.08.17
申请号
US19360071591
申请日期
1936.03.30
申请人
HUTCHINS RUFUS J
发明人
HUTCHINS RUFUS J.
分类号
F24H1/20
主分类号
F24H1/20
代理机构
代理人
主权项
地址
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