Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804811 | Multi-operator grid system for stud welding | Robert J. Raycher, Ronald A. Cangro, Charles E. Gum, Francis J. Williams | 1989-02-14 |
| 4456808 | Microprocessor control of welding apparatus | Harold C. Wilkinson, Charles E. Gum, Rodney C. Howe, Charles C. Pease, Robert J. Raycher +2 more | 1984-06-26 |