Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302281 | Vending machine cabinet | David R. Frerking | 1989-07-18 |
| 4844294 | Vending machine shelf assembly with drive unit helix safety lock | — | 1989-07-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D302281 | Vending machine cabinet | David R. Frerking | 1989-07-18 |
| 4844294 | Vending machine shelf assembly with drive unit helix safety lock | — | 1989-07-04 |