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发明名称
Electric control system
摘要
申请公布号
US1993057(A)
申请公布日期
1935.03.05
申请号
US19320592055
申请日期
1932.02.10
申请人
HAFF ARTHUR E
发明人
HAFF ARTHUR E.
分类号
H02P29/00
主分类号
H02P29/00
代理机构
代理人
主权项
地址
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