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发明名称
Dual frequency electric control circuit
摘要
申请公布号
US2512377(A)
申请公布日期
1950.06.20
申请号
US19400365966
申请日期
1940.11.16
申请人
GENERAL ELECTRIC COMPANY
发明人
PETTIBONE GEORGE H.;BOWER JOHN L.
分类号
G05D3/12
主分类号
G05D3/12
代理机构
代理人
主权项
地址
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