P
PatentIndex
Search
Landscape
Sign in
Assignee
CALLELE DAVID
CA
2 patents
Top patents
by PatentIndex Score
US5206900A
Apr 27, 1993
Automated attendant
CALLELE DAVID
95 citations
93
US5117452A
May 26, 1992
Telephone interface for a computer for receiving and transmitting information during the silent interval between ringing
CALLELE DAVID
70 citations
91