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经营范围
发明名称
Concentric coil sheath heating unit
摘要
申请公布号
US2494333(A)
申请公布日期
1950.01.10
申请号
US19480031978
申请日期
1948.06.09
申请人
GENERAL ELECTRIC COMPANY
发明人
DALY LORETTA M.
分类号
H05B3/48
主分类号
H05B3/48
代理机构
代理人
主权项
地址
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