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EA Laboratories Inc
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EA Laboratories Inc
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Application filed by EA Laboratories IncfiledCriticalEA Laboratories Inc
Application grantedgrantedCritical
Publication of FR700104ApublicationCriticalpatent/FR700104A/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
G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
G10K9/15—Self-interrupting arrangements
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Physics & Mathematics
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Electromagnetism
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Engineering & Computer Science
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Acoustics & Sound
(AREA)
Multimedia
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FR700104D1930-08-051930-08-05Appareil avertisseur pour automobiles et autres applications
ExpiredFR700104A
(fr)