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发明名称
HYBRID FREQUENCY SHIFT-AMPLITUDE MODULATED TONE SYSTEM
摘要
申请公布号
US3626417(A)
申请公布日期
1971.12.07
申请号
USD3626417
申请日期
1969.03.07
申请人
EVERETT A. GILBERT
发明人
EVERETT A. GILBERT
分类号
H04J9/00;H04L5/04;H04L27/32
主分类号
H04J9/00
代理机构
代理人
主权项
地址
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