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L CHOLLET ET R GOBERT Ste
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L CHOLLET ET R GOBERT Ste
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Publication date
Application filed by L CHOLLET ET R GOBERT StefiledCriticalL CHOLLET ET R GOBERT Ste
Application grantedgrantedCritical
Publication of FR402203ApublicationCriticalpatent/FR402203A/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
Landscapes
Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Acoustics & Sound
(AREA)
Multimedia
(AREA)
FR402203D1909-04-191909-04-19Sirène pour la transmission à distance des signaux scandés
ExpiredFR402203A
(fr)