Safety circuit to prevent the obtaining of a false count from pr
Scanner for detecting and indicating missing and wedged articles
Scanning photoelectric microscope
Scorekeeping device for tennis and similar games
Security guard recording system
Self-balancing bridge-type proximity detector
Self-calibrating electric clock circuit
Self-test circuit apparatus
Semiconductor diode temperature sensing device
Sequential control system for a lift truck
Service meter with pulse counter
Service purchasing system
Sheet counting apparatus
Sheet counting apparatus
Sheet counting machine
Sheet counting method and apparatus
Signal decision system
Signal generator
Solid state digital running time indicator
Static digital data entry method and apparatus for a timer or cl