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发明名称
Electric motor control system
摘要
申请公布号
US1821205(A)
申请公布日期
1931.09.01
申请号
US19270184320
申请日期
1927.04.16
申请人
THE PARAMOUNT FIRE ALARM ENGINEERING COMPANY
发明人
CARVER LEO A.
分类号
G08G1/085
主分类号
G08G1/085
代理机构
代理人
主权项
地址
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