Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859304 | Temperature controlled anode for plasma dry etchers for etching semiconductor | David A. Cathey, John C. Freeman, William J. Crane, Eric Powell, Jeffrey V. Musser | 1989-08-22 |
| 4811774 | Tire Changer safety arm | Bryce L. Mannen, Raymond Titsworth | 1989-03-14 |
| 4809759 | Tire changer safety arm | Bryce L. Mannen, Raymond Titsworth | 1989-03-07 |