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发明名称
Method of manufacturing electric heating units
摘要
申请公布号
US1991591(A)
申请公布日期
1935.02.19
申请号
US19310554046
申请日期
1931.07.30
申请人
GENERAL ELECTRIC COMPANY
发明人
ABBOTT CHARLES C.
分类号
H05B3/48;H05B3/52
主分类号
H05B3/48
代理机构
代理人
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