Membership
Tour
Register
Log in
G. Michael Eastep
Follow
Person
McKenney, TX, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Echo canceller system
Patent number
6,728,223
Issue date
Apr 27, 2004
MCI Communications Corporation
Paul D. Litzenberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE