RS

Robert L. Rigdon, Sr.

JD John Deere: 1 patents #2,957 of 5,518Top 55%
📍 Dunkerton, IA: #7 of 10 inventorsTop 70%
🗺 Iowa: #8,735 of 15,303 inventorsTop 60%
Overall (All Time): #3,905,905 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4936634 Removable wheel tread adjusting device Gary J. Stratton, Carl E. Kittle, Michael Wagner, Lynn E. Porter, John J. Freund +1 more 1990-06-26