HS

Harry F. Semple

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Rantoul, IL: #192 of 340 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,018,509 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4530318 Intake and exhaust valve system for internal combustion engine — 1985-07-23