RH

Ralph W. Hoekstra

SS Swenson Spreader: 2 patents #1 of 1Top 100%
📍 Stillman Valley, IL: #1 of 1 inventorsTop 100%
🗺 Illinois: #186 of 2,749 inventorsTop 7%
Overall (1982): #9,009 of 81,411Top 15%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4353177 Control for snowplow blade — 1982-10-12
4342163 Apparatus for mounting a snowplow blade to a vehicle — 1982-08-03