Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353050 | Displacement measuring transducer | Alan Pelczyk, Robert F. Purssell, Alfred J. Woollard, Albert L. Fowler, David M. Walker +1 more | 1982-10-05 |
| 4284990 | Position sensing transducer | Albert L. Fowler, Alan G. Henderson, David M. Walker | 1981-08-18 |
| 4262644 | Spark timing control circuit for controlling the timing of spark ignition of an internal combustion engine | David M. Walker | 1981-04-21 |