Membership
Tour
Register
Log in
John C. Barton
Follow
Person
Naperville, IL, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Full duplex digital transmission facility loop-back test, diagnosti...
Patent number
5,343,461
Issue date
Aug 30, 1994
Ameritech Services, Inc.
John C. Barton
H04 - ELECTRIC COMMUNICATION TECHNIQUE