Electrical and scientific apparatus Trademarks Filed in December 17, 1970
DUOTONE
Filed: December 17, 1970
LOUDSPEAKERS
Owned by: DUOTONE COMPANY INC.
Serial Number: 72378948
GLASS-AMP II
Filed: December 17, 1970
SILICON RECTIFIERS
Owned by: GENERAL INSTRUMENT CORPORATION
Serial Number: 72378957
