JH

John J. Hennen

JD John Deere: 3 patents #1,495 of 5,518Top 30%
Overall (All Time): #1,670,945 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4838011 Fluid actuated clutch having fluid slip fitting safety interlock Gerd Bramstedt, Mahlon L. Love 1989-06-13
4696432 Forage harvester blower Roger A. Russ 1987-09-29
4186889 Forage harvester recutter screen Robert D. Black, Jerry L. Krafka 1980-02-05