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1.Superheterodyne radio receiver employing a multifunction tube 失效
Title translation: 使用多功能管的超外差无线电接收机公开(公告)号:US2597029A
公开(公告)日:1952-05-20
申请号:US69848446
申请日:1946-09-21
Applicant: INT STANDARD ELECTRIC CORP
Inventor: PHINNEY EDWARD D , HARLEY REEVES ALEC
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公开(公告)号:US2640917A
公开(公告)日:1953-06-02
申请号:US5585648
申请日:1948-10-22
Applicant: INT STANDARD ELECTRIC CORP
Inventor: PHINNEY EDWARD D , BAILEY ROBERT S
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