Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4320282 | Microprocessor based arc-air and welder noise abatement controller | John McDonald, Warren C. Kennedy, Paul B. Crilly | 1982-03-16 |
| 4300033 | Reduced operating noise nozzle for electric arc cutting device | Warren C. Kennedy, John McDonald | 1981-11-10 |
| 4244442 | Method and apparatus for treating exhaust gases particularly for air-operated tools | Warren C. Kennedy, Keith Raymond Gaylo | 1981-01-13 |