Magnetically triggered on-board elapsed time indicator
Method and apparatus for alerting basketball fans of...
Method and apparatus for detecting illegal pitches
Method and apparatus for indicating a strike at bowling alley
Method and controller for providing a location-based game...
Method and system to control multiple types of scoreboards
Method and system to control multiple types of scoreboards
Multi-functional basketball game monitoring unit
Multi-functional volleyball talking scorekeeper
Multifunctional basketball game monitoring unit
Multifunctional basketball game monitoring unit