JK

John Kettell

Overall (All Time): #2,331,814 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4846329 Friction element for clutch David L. Whitmarsh 1989-07-11
4423804 Friction clutches David J. Anderson 1984-01-03