Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869479 | Spring for floors and the like | DeVere V. Lindh, Frederick A. Sutton | 1989-09-26 |
| 4823883 | Shock relieving horseshoe | De Vere V. Lindh | 1989-04-25 |
| 4818632 | Plated structure exhibiting low hydrogen embrittlement | Grace F. Hsu | 1989-04-04 |
| 4798009 | Spring apparatus for shoe soles and the like | DeVere V. Lindh | 1989-01-17 |