FR435012A - Disque phonographique à enregistrement par déroulement uniforme de la spire. mouvement pour l'enregistrement de ces disques et leur reproduction
- Google Patents
Disque phonographique à enregistrement par déroulement uniforme de la spire. mouvement pour l'enregistrement de ces disques et leur reproduction
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LOUIS CESAR COMMINET
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LOUIS CESAR COMMINET
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Application filed by LOUIS CESAR COMMINETfiledCriticalLOUIS CESAR COMMINET
Application grantedgrantedCritical
Publication of FR435012ApublicationCriticalpatent/FR435012A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
G11B19/20—Driving; Starting; Stopping; Control thereof
G11B19/26—Speed-changing arrangements; Reversing arrangements; Drive-transfer means therefor
G11B19/265—Friction wheel drive
FR435012D1911-10-091911-10-09Disque phonographique à enregistrement par déroulement uniforme de la spire. mouvement pour l'enregistrement de ces disques et leur reproduction
ExpiredFR435012A
(fr)
Perfectionnements aux appareils pour enregistrer ou reproduire les mouvements d'un sujet et pour, en meme temps, enregistrer ou reproduire les sons émis par ledit sujet