Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850078 | Adjustable roller assembly for sliding doors | Frank V. Pliml, Jr., William M. Johnson, Laurence P. Armstrong, James L. Peterson | 1989-07-25 |
| 4843775 | Square butt door frame and method of assembly | Laurence P. Armstrong, James L. Peterson, Roger Norberg | 1989-07-04 |
| 4630432 | Pick-up tine assembly for harvester reels | John Love, Archie E. Neal | 1986-12-23 |