Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688754 | End assembly for control valves | — | 1987-08-25 |
| 4660600 | First out indicator | — | 1987-04-28 |
| D287107 | Indicator lens | Theodore A. Stollberg | 1986-12-09 |
| 4596980 | Light-emitting indicator | Theodore A. Stollberg | 1986-06-24 |
| 4535899 | Boom warning actuator | — | 1985-08-20 |
| 4499846 | Plunger and transparent indicator | Theodore A. Stollberg | 1985-02-19 |
| 4470367 | First out fluid pressure indicator | — | 1984-09-11 |
| 4424909 | Crane boom warning actuator | — | 1984-01-10 |
| 4375789 | First out indicator | — | 1983-03-08 |