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发明名称
Improvements in or relating to speed control equipment for electric motors
摘要
申请公布号
GB857040(A)
申请公布日期
1960.12.29
申请号
GB19570011566
申请日期
1957.04.09
申请人
BRITISH TELECOMMUNICATIONS RESEARCH LIMITED
发明人
CLARK THOMAS HAROLD
分类号
H02P25/28
主分类号
H02P25/28
代理机构
代理人
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