197693 ⎘
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor; Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes on transverse tracks using cyclically driven heads providing segmented tracks for transducing on more than one segment simultaneously
Sub-classes:Magnetic recording and playback method and magnetic recording and playback apparatus
#2Magnetic recording and reproduction method, recording apparatus, reproduction apparatus and magnetic recording medium
#3Magnetic head assembly having trimming recesses, method for producing the same, and magnetic-tape recording and playback apparatus