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发明名称
TALK-BACK COMMUNICATION SYSTEM
摘要
申请公布号
CA418885(A)
申请公布日期
1944.03.07
申请号
CAD418885
申请日期
申请人
GUIDED RADIO CORPORATION
发明人
HERBERT BARNETT;FRED W. NICKERSON;WILLIAM C. MOORE
分类号
主分类号
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代理人
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