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Publication of FR810213ApublicationCriticalpatent/FR810213A/fr
H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
H03J1/02—Indicating arrangements
H03J1/04—Indicating arrangements with optical indicating means
H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
FR810213D1936-09-031936-09-03Dispositif pour produire des effets de lumière, en particulier pour appareils récepteurs radiophoniques
ExpiredFR810213A
(fr)