Membership
Tour
Register
Log in
William Wlfred Spencer
Follow
Person
East London, ZA
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Supplementary torsion spring assembly
Patent number
6,619,638
Issue date
Sep 16, 2003
William Wilfred Spencer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Adjustable coil spring assembly
Patent number
5,540,417
Issue date
Jul 30, 1996
William W. Spencer
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Supplementary vehicle spring assembly
Publication number
20120133090
Publication date
May 31, 2012
Roadmaster Active Suspension, Inc.
William Wlfred Spencer
B60 - VEHICLES IN GENERAL