Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829989 | Stoop laborer's body support having hinge with adjustable spring biasing | David W. Deamer | 1989-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829989 | Stoop laborer's body support having hinge with adjustable spring biasing | David W. Deamer | 1989-05-16 |