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发明名称
Electric heater unit and method of making same
摘要
申请公布号
US2012977(A)
申请公布日期
1935.09.03
申请号
US19320600960
申请日期
1932.03.24
申请人
HAROLD E. TRENT COMPANY
发明人
TRENT HAROLD E.;WHITNEY CHARLES L.
分类号
H05B3/78
主分类号
H05B3/78
代理机构
代理人
主权项
地址
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