Membership
Tour
Register
Log in
Clayton F. Brooks
Follow
Person
Channelview, TX, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Post driver
Patent number
4,971,479
Issue date
Nov 20, 1990
Southwestern Bell Telephone Company
Alvin H. Byers
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES