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Publication of FR722454ApublicationCriticalpatent/FR722454A/fr
G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
G10K1/28—Bells for towers or the like
G10K1/30—Details or accessories
G10K1/34—Operating mechanisms
G10K1/347—Operating mechanisms for an oscillating bell which is driven twice per cycle
G10K1/348—Operating mechanisms for an oscillating bell which is driven twice per cycle electrically operated
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FR722454D1931-09-041931-09-04Dispositif de commande électrique de la sonnerie des cloches
ExpiredFR722454A
(fr)