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Weiss & Co J
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Weiss & Co J
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Application filed by Weiss & Co JfiledCriticalWeiss & Co J
Application grantedgrantedCritical
Publication of FR572711ApublicationCriticalpatent/FR572711A/en
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
G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
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Physics & Mathematics
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Engineering & Computer Science
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Acoustics & Sound
(AREA)
Multimedia
(AREA)
FR572711D1923-11-071923-11-07
Improvements to talking machines and other similar machines
ExpiredFR572711A
(en)