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发明名称
Means for establishing the phase of an alternating control voltage and a follow-up control system embodying the same
摘要
申请公布号
US2711500(A)
申请公布日期
1955.06.21
申请号
US19490120893
申请日期
1949.10.12
申请人
THE BRISTOL COMPANY
发明人
MALTBY FREDERICK L.
分类号
G05B1/02
主分类号
G05B1/02
代理机构
代理人
主权项
地址
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