73692540
Oct 29, 1987
Jul 12, 1988
ELECTRIC LOCKS; COMPUTER CONTROLLED LOCKING APPARATUS FOR DOORS, AND COMPUTERS THEREFOR; ELECTRONICALLY OPERATED LOCKS FOR DOORS, KEY CARDS AND MICROPROCESSORS THEREFOR; ENCODERS FOR KEYCARDS; PRINTERS FOR USE WITH COMPUTERS; PARTS FOR ALL THE AFORESAID GOODS
Electrical and Scientific Apparatus