Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861340 | Hand-held pneumatic power assisted syringe | Charles R. Slater | 1989-08-29 |
| 4831870 | Method and apparatus for vacuum testing glass bulbs for sprinklers | — | 1989-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861340 | Hand-held pneumatic power assisted syringe | Charles R. Slater | 1989-08-29 |
| 4831870 | Method and apparatus for vacuum testing glass bulbs for sprinklers | — | 1989-05-23 |