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MANUF LYONNAISE D APP AVERTISS
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MANUF LYONNAISE D APP AVERTISS
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Application filed by MANUF LYONNAISE D APP AVERTISSfiledCriticalMANUF LYONNAISE D APP AVERTISS
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Publication of FR786854ApublicationCriticalpatent/FR786854A/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
G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
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FR786854D1934-06-011934-06-01Dispositif producteur de son pour avertisseurs à air et analogues
ExpiredFR786854A
(fr)