Score keeping display apparatus
Scoring system for athletic events
Scratchable conductive latex document scanner
Simultaneous bidirectional timing display
Ski stress signaling device
Sound generating device for jogger
Sporting game time-out indicator
Sports monitoring and tracking system
Sports timing system
Switch closure responsive logic signal generation means
System and method for monitoring a competitive activity
System and method for tracking identity movement and...
System for instantaneously displaying the ranking of a competito
System for selective detection and indication of impacts upon a