Inventor
TRAVIS KRISTIN J
CA3 patents
Patents
3 patentsUS5615257AMar 25, 1997
Screen-based telephone set for interactive enhanced telephony service
NORTHERN TELECOM LTD84 citations93
US6064732AMay 16, 2000
Screen-based telephone set for interactive enhanced telephony service
NORTHERN TELECOM LTD30 citations89
US5590189ADec 31, 1996
Method of operating a microprocessor controlled telephone set
NORTHERN TELECOM LTD20 citations85