JH

John J. Hennen

JD John Deere: 1 patents #28 of 169Top 20%
📍 Ottumwa, IA: #3 of 13 inventorsTop 25%
🗺 Iowa: #89 of 549 inventorsTop 20%
Overall (1989): #95,001 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4838011 Fluid actuated clutch having fluid slip fitting safety interlock Gerd Bramstedt, Mahlon L. Love 1989-06-13