Membership
Tour
Register
Log in
James W. Jensen
Follow
Person
Linn County, IA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Railroad crossing gate
Patent number
4,897,960
Issue date
Feb 6, 1990
General Signals, Inc.
Todd A. Barvinek
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES