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发明名称
Frequency converter
摘要
申请公布号
GB814464(A)
申请公布日期
1959.06.03
申请号
GB19560002881
申请日期
1956.01.30
申请人
WESTINGHOUSE BRAKE & SIGNAL COMPANY LIMITED;RAYMOND GERALD MARTIN
发明人
分类号
H02M5/27;H03B19/14;H03B19/16
主分类号
H02M5/27
代理机构
代理人
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地址
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