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发明名称
Protective arrangement for electric valve converting systems
摘要
申请公布号
US2157851(A)
申请公布日期
1939.05.09
申请号
US19360091194
申请日期
1936.07.17
申请人
GENERAL ELECTRIC COMPANY
发明人
FROHMER CLAUS
分类号
H02H7/127
主分类号
H02H7/127
代理机构
代理人
主权项
地址
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