75266506
Mar 31, 1997
Jun 13, 2000
magnetically encoded time cards, bar coded time cards and time cards encoded for magnetic field proximity sensing; card reader systems comprised of programmable microprocessor-based time clocks, magnetically encoded card readers and output information display units
Electrical and Scientific Apparatuscard reader systems comprised of programmable microprocessor-based time clocks, magnetically encoded card readers and output information display units
Jewelry