Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5803279 | Automatically deployable load-line receiving mast structure for limiting deflection of proportionally extendable boom section crane | Richard J. Stallbaumer, Raymond F. Pitman | 1998-09-08 |
| 5486084 | Multiple purpose material handling and working apparatus | Raymond F. Pitman, Richard J. Stallbaumer | 1996-01-23 |
| 4811942 | Playground unit having governor for controlling rotational speed | — | 1989-03-14 |
| 4623048 | Governor for controlling rotational speed | — | 1986-11-18 |