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发明名称
Tone wheel to produce frequency-modulated low frequency oscillations
摘要
申请公布号
GB694937(A)
申请公布日期
1953.07.29
申请号
GB19520003380
申请日期
1952.02.08
申请人
STANDARD TELEPHONES AND CABLES LIMITED
发明人
分类号
G10H3/08
主分类号
G10H3/08
代理机构
代理人
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