HS

Harold W. Spielman

TO Towhaul: 4 patents #1 of 6Top 20%
📍 Abbotsford, CA: #25 of 191 inventorsTop 15%
Overall (All Time): #1,258,471 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10428923 Torque converter oil cooling system and method of use 2019-10-01
7036640 Brake cooling system and method of cooling brakes in an axle assembly 2006-05-02
6071068 Dragline bucket transporter and method of use Francis V. Smith 2000-06-06
5944471 Dragline bucket transporter and method of use Francis V. Smith 1999-08-31