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发明名称
Automatic electrically operated water heater
摘要
申请公布号
US2779855(A)
申请公布日期
1957.01.29
申请号
US19550515415
申请日期
1955.06.14
申请人
SAWYER BOYD F
发明人
SAWYER BOYD F.
分类号
F24H1/22;F24H9/12;G05D23/275
主分类号
F24H1/22
代理机构
代理人
主权项
地址
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