Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D294583 | Tender | Richard J. Ehmke | 1988-03-08 |
| D279921 | Washdown sprayer tank | Richard J. Ehmke, Arthur F. Linsenmeyer | 1985-07-30 |
| 4469210 | Rotary chute for spreader | Arthur F. Linsenmeyer | 1984-09-04 |