Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CORNELIUS ROTHEUDT
Original Assignee
CORNELIUS ROTHEUDT
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Filing date
Publication date
Application filed by CORNELIUS ROTHEUDTfiledCriticalCORNELIUS ROTHEUDT
Application grantedgrantedCritical
Publication of FR436868ApublicationCriticalpatent/FR436868A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
G11B3/68—Record carriers
G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR436868D1911-11-271911-11-27Dispositif d'une rainure de retour pour disques de gramophone
ExpiredFR436868A
(fr)