Membership
Tour
Register
Log in
George D. Klein
Follow
Person
Thorsby, CA
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Spacer for deep wells
Patent number
4,478,278
Issue date
Oct 23, 1984
Texaco Canada Resources Ltd.
George D. Klein
E21 - EARTH DRILLING MINING