198362 ⎘
Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups - or by different subgroups of group ; Record carriers therefor using recording by mechanical cutting, deforming or pressing with reproducing by magnetic means
SYSTEMS AND METHODS FOR REDUCING AUDIO DISTORTION DURING PLAYBACK OF PHONOGRAPH RECORDS USING MULTIPLE TONEARM GEOMETRIES
#2Systems and methods for reducing audio distortion during playback of phonograph records using multiple tonearm geometries
#3Data storage system and apparatus
#4Probes and Media for High Density Data Storage
#5Atomic probes and media for high density data storage
#6Atomic probes and media for high density data storage
#7Storage device having first and second magnetic elements that interact magnetically to indicate a storage state