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G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
FR750594D1932-02-131933-02-11
Device and film intended for the recording and reproduction of any phenomena
ExpiredFR750594A
(en)