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发明名称
Electrical control system
摘要
申请公布号
US1895925(A)
申请公布日期
1933.01.31
申请号
US19300456607
申请日期
1930.05.28
申请人
GENERAL ELECTRIC COMPANY
发明人
JR. JOHN HAYS HAMMOND,
分类号
H02P5/48
主分类号
H02P5/48
代理机构
代理人
主权项
地址
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