Membership
Tour
Register
Log in
Larry V. O'Malley
Follow
Person
Batesburg, SC, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Dual tone selector with answerback signalling
Patent number
4,064,367
Issue date
Dec 20, 1977
Westinghouse Air Brake Company
Larry V. O'Malley
G08 - SIGNALLING