Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814573 | Electrical discharge machining apparatus with exchangeable electrode refeed cartridge | William Clayton, Frederick L. Fitts, Thomas Walser | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814573 | Electrical discharge machining apparatus with exchangeable electrode refeed cartridge | William Clayton, Frederick L. Fitts, Thomas Walser | 1989-03-21 |