Membership
Tour
Register
Log in
Archibald B. Ellsworth
Follow
Person
Santee, CA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Seam tracking welding system
Patent number
4,021,840
Issue date
May 3, 1977
General Dynamics Corporation
Archibald B. Ellsworth
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR