Inventor
BIWER WILLIAM
US3 patents
Patents
3 patentsUS6330978B1Dec 18, 2001
Electronic purse card value system card security method
DIEBOLD INC93 citations95
US6032135AFeb 29, 2000
Electronic purse card value system terminal programming system and method
DIEBOLD INC116 citations95
US6145740ANov 14, 2000
Electronic purse card value system
DIEBOLD INC45 citations89