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经营范围
发明名称
Improvements in or relating to variable voltage motor control systems
摘要
申请公布号
GB725852(A)
申请公布日期
1955.03.09
申请号
GB19530009535
申请日期
1953.04.08
申请人
IGRANIC ELECTRIC COMPANY LIMITED
发明人
分类号
B66C13/24
主分类号
B66C13/24
代理机构
代理人
主权项
地址
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