Membership
Tour
Register
Log in
Douglas M. Kerr
Follow
Person
Fairfield, IA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Conveyor system
Patent number
4,280,413
Issue date
Jul 28, 1981
Acco Industries Inc.
Douglas M. Kerr
B61 - RAILWAYS