Inventor

KROB JR RONALD HENRY

US2 patents

Patents

2 patents

US8517213B2Aug 27, 2013

Vending machine user interface guide; electronic coin return; and hinged delivery bin

LAZALIER RAY MELTON1 citations42

US8205770B2Jun 26, 2012

Vending machine user interface guide; electronic coin return; and hinged delivery bin

LAZALIER RAY MELTON1 citations42