Seek and track control for a rectangular optical card handling a
Selection of colors for color bar codes
Selective card entry gate with ridged profile
Selective pattern scanner
Selective text retrieval system
Selectively illuminating marking apparatus and method for...
Self clocking magnetic encoder
Self service terminal and method for processing transaction...
Self-administered survey questionnaire and method
Self-aligning magnetic read head incorporating lift-up...
Self-calibrating apparatus for photoelectrically scanning answer
Self-checkout, point-of-transaction system including deactivatab
Self-cleaning perforation detector and method
Self-clocking glyph code for encoding dual bit digital values ro
Self-clocking glyph code having composite glyphs for distributiv
Self-clocking n,k code word without start or stop
Self-compensating speaker volume control system for data...
Self-contained detector device for checking information recorded
Self-contained miniature timer
Self-contained scanning and verifying apparatus with movably...