Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883723 | Hot dip aluminum coated chromium alloy steel | Farrell M. Kilbane, Richard A. Coleman, Frank C. Dunbar | 1989-11-28 |
| 4814054 | Apparatus for producing one-side electroplated steel strip with enhanced phosphatability | Timothy R. Roberts, David M. Smith, Douglas J. Robbins | 1989-03-21 |
| 4808278 | Method and apparatus for producing one-side electroplated steel strip with enhanced phosphatability | Timothy R. Roberts, David M. Smith, Douglas J. Robbins | 1989-02-28 |
| 4800135 | Hot dip aluminum coated chromium alloy steel | Farrell M. Kilbane, Richard A. Coleman, Frank C. Dunbar | 1989-01-24 |