Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826539 | Cleaning apparatus and method | — | 1989-05-02 |
| 4817523 | Flat bed screen printing press | James E. Belcher | 1989-04-04 |
| 4809604 | Machine for screen printing numbers | — | 1989-03-07 |