Zone-based command transmissions to cart wheel assemblies
Wheel assembly and antenna design for cart tracking system
System with wheel assembly that communicates with display unit of human propelled cart
System with handheld mobile control unit for controlling shopping cart wheel assemblies
System for monitoring and controlling shopping cart usage
SYSTEM FOR MONITORING AND CONTROLLING SHOPPING CART USAGE
System for monitoring and controlling shopping cart usage
SYSTEM FOR MONITORING AND CONTROLLING SHOPPING CART USAGE
System for monitoring and controlling shopping cart usage
SYSTEM FOR MONITORING AND CONTROLLING SHOPPING CART USAGE
System for controlling usage of shopping carts or other human-propelled vehicles