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.)
Compton John Organ Co Ltd
Original Assignee
Compton John Organ Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compton John Organ Co LtdfiledCriticalCompton John Organ Co Ltd
Application grantedgrantedCritical
Publication of FR771081ApublicationCriticalpatent/FR771081A/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
G11B19/28—Speed controlling, regulating, or indicating
FR771081D1932-09-221933-09-22Perfectionnements aux systèmes de reproduction des sons
ExpiredFR771081A
(fr)