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发明名称
Electric heater and method of making the same
摘要
申请公布号
US1993410(A)
申请公布日期
1935.03.05
申请号
US19320614886
申请日期
1932.06.02
申请人
CUTLER-HAMMER, INC.
发明人
LIGHTFOOT EDWIN N.
分类号
H05B3/48;H05B3/52
主分类号
H05B3/48
代理机构
代理人
主权项
地址
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