73519915
Jan 30, 1985
Mar 17, 1987
MAGNETIC CIRCUITS; MAGNETIC MEDIA WRITERS AND/OR READERS; HEADS FOR WRITING AND/OR READING MAGNETIC MEDIA; SORTERS AND READERS FOR PUNCHED CARDS AND MAGNETIC MEDIA; MAGNETIC AND ELECTROMAGNETIC COMPONENTS, NAMELY, INDUCTION CORES, FERRITE ELEMENTS, BOBBINS, TOROIDS, DEFLECTION YOKES, AND MAGNETIC SHIELDS; MECHANISMS ACTIVATED BY EITHER COINS, TOKENS, MAGNETIC SCRIPT, OR MAGNETIC CARDS FOR ACTIVATING OTHER APPARATUS
Electrical and Scientific Apparatus