Membership
Tour
Register
Log in
Willis G. Groth
Follow
Person
Geneva, IL, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Wheel construction and arrangement
Patent number
4,331,343
Issue date
May 25, 1982
H. A. Phillips & Co.
Willis G. Groth
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Drive mechanism
Patent number
4,272,997
Issue date
Jun 16, 1981
H. A. Phillips & Co.
Willis G. Groth
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR