Membership
Tour
Register
Log in
Wray C. Hansen Sr.
Follow
Person
Arvada, CO, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Knob spring
Patent number
4,113,399
Issue date
Sep 12, 1978
Wray C. Hansen
G05 - CONTROLLING REGULATING