Unattended automated system for selling and dispensing

Unattended automated system for selling and dispensing motor...

Unattended sale of products or services requiring customer...

Unitary currency/credit card unit

Unitary extractor system for products in dispensing machines

Universal adaptor for electronic parking meters

Universal funnel and mounting bracket for coin receptacles...

Universal game monitoring unit and system

Universal interactive advertising & payment system for...

Universal personal property locking device

Unknown

Usb device protocol for a gaming machine

Usb software architecture in a gaming machine

Use of cellular phones for payment of vending machines

User alterable prize distribution and system for identifying...

User authentication system and method

User-specific dispensing system