73599989
May 21, 1986
Oct 13, 1987
MAGNETIC AND OPTICAL TAPES, CARDS AND DISCS FOR USE IN AUDIO, VISUAL AND DATA RECORDING; PRERECORDED MAGNETIC AND OPTICAL TAPES, CARDS AND DISCS FOR USE IN AUDIO, VISUAL AND DATA REPRODUCING; MAGNETIC AND OPTICAL RECORDERS AND/OR REPRODUCERS FOR TAPES, CARDS OR DISCS
Electrical and Scientific Apparatus