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HURTAULT FRERES SOC
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HURTAULT FRERES SOC
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Application filed by HURTAULT FRERES SOCfiledCriticalHURTAULT FRERES SOC
Application grantedgrantedCritical
Publication of FR468736ApublicationCriticalpatent/FR468736A/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
G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
G10K9/22—Mountings; Casings
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Physics & Mathematics
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Engineering & Computer Science
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Acoustics & Sound
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FR468736D1914-02-201914-02-20Perfectionnement aux cornets acoustiques pour cycles, véhicules, etc.
ExpiredFR468736A
(fr)