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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
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FR579741D1924-03-251924-03-25Dispositif de contact électrique applicable aux machines actionnées par des efforts de traction intermittents
ExpiredFR579741A
(fr)