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经营范围
发明名称
DIGITAL FREQUENCY DISCRIMINATOR
摘要
申请公布号
US3624523(A)
申请公布日期
1971.11.30
申请号
USD3624523
申请日期
1969.09.19
申请人
HUGHES AIRCRAFT CO.
发明人
JOEL KATZ
分类号
H03D3/20;(IPC1-7):H03B3/04
主分类号
H03D3/20
代理机构
代理人
主权项
地址
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