Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D300123 | Insulation tester or the like | Ralph Hopper, Christopher L. Steggall, Terence M. Friend | 1989-03-07 |
| D285910 | Electrical measuring instrument | David C. Tedd, Terence M. Friend, Christopher L. Steggall | 1986-09-30 |
| D285663 | Electrical measuring instrument | David C. Tedd, Terence M. Friend, Christopher L. Steggall | 1986-09-16 |