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Parent & Viriot
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Parent & Viriot
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Application filed by Parent & ViriotfiledCriticalParent & Viriot
Application grantedgrantedCritical
Publication of FR514293ApublicationCriticalpatent/FR514293A/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
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Physics & Mathematics
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Engineering & Computer Science
(AREA)
Acoustics & Sound
(AREA)
Multimedia
(AREA)
FR514293A1920-04-231920-04-23Avertisseur pour automobiles
ExpiredFR514293A
(fr)