Membership
Tour
Register
Log in
Bernard A. Tilson
Follow
Person
Parsippany, NJ, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Range extender with variable gain for coin telephone loops
Patent number
4,323,733
Issue date
Apr 6, 1982
Bell Telephone Laboratories, Inc.
Henry W. Ott
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telephone ringing extender
Patent number
4,144,408
Issue date
Mar 13, 1979
Bell Telephone Laboratories, Incorporated
Roger E. Holtz
H04 - ELECTRIC COMMUNICATION TECHNIQUE