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PETER PAN GRAMOPHONE CO Ltd
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PETER PAN GRAMOPHONE CO Ltd
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Application filed by PETER PAN GRAMOPHONE CO LtdfiledCriticalPETER PAN GRAMOPHONE CO Ltd
Application grantedgrantedCritical
Publication of FR578852ApublicationCriticalpatent/FR578852A/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
G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
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Engineering & Computer Science
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Acoustics & Sound
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FR578852D1923-06-191924-03-19Perfectionnements apportés à la construction des gramophones
ExpiredFR578852A
(fr)