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LOUIS TESTE
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LOUIS TESTE
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Publication of FR364986ApublicationCriticalpatent/FR364986A/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
G10K7/00—Sirens
G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor
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FR364986D1906-04-061906-04-06Dispositif de sirène pour bicyclettes
ExpiredFR364986A
(fr)