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发明名称
Automatic regulating device for current rectifying apparatus
摘要
申请公布号
US2157977(A)
申请公布日期
1939.05.09
申请号
US19360087203
申请日期
1936.06.25
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
ALRIQ HUBERT
分类号
G05F1/32
主分类号
G05F1/32
代理机构
代理人
主权项
地址
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