Membership
Tour
Register
Log in
Ernest B. Clark III
Follow
Person
Peoria, IL, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Pressure balanced - constant engagement force seal
Patent number
4,327,921
Issue date
May 4, 1982
Caterpillar Tractor Co.
Harold L. Reinsma
B60 - VEHICLES IN GENERAL