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.)
Publication of BE528129ApublicationCriticalpatent/BE528129A/xx
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
G11B15/26—Driving record carriers by members acting directly or indirectly thereon
G11B15/34—Driving record carriers by members acting directly or indirectly thereon through non-slip drive means, e.g. sprocket