Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4786778 | Electrical discharge machining fine finish circuit with symmetrical waveform in both polarities | Randall C. Gilleland | 1988-11-22 |
| 4777339 | Gap voltage sensing network for electrical discharge machining power supply | — | 1988-10-11 |
| 4751363 | Automatic turn-on fine finish circuit for electrical discharge machining | — | 1988-06-14 |
| 4733058 | Fail transistor detection and display system for electrical discharge machining apparatus | Oliver A. Bell, Jr. | 1988-03-22 |
| 4443682 | Superimposed high striking voltage power supply circuit for electrical discharge machining | — | 1984-04-17 |