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1.发明授权Direct-coupled transistor oscillator having variable source impedance for controlling frequency 失效具有可变源阻抗的直接耦合晶体管振荡器用于控制频率
公开(公告)号：US3141139A
公开(公告)日：1964-07-14
申请号：US16228761
申请日：1961-12-26
Applicant: BELL TELEPHONE LABOR INC
Inventor： MILLS JOHN K , ZUPA FRANK P
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