JH

John C. Hempstead

GO Gould: 1 patents #131 of 364Top 40%
📍 Bellefontaine, OH: #54 of 106 inventorsTop 55%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,116,441 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4214219 Push-push switch Bernard DiMarco 1980-07-22