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发明名称
Variable speed motor system
摘要
申请公布号
US2319625(A)
申请公布日期
1943.05.18
申请号
US19370161407
申请日期
1937.08.28
申请人
OSTRANDER JOHN K
发明人
OSTRANDER JOHN K.
分类号
H02P25/32
主分类号
H02P25/32
代理机构
代理人
主权项
地址
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