Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867832 | Portable labeling machine | — | 1989-09-19 |
| 4853068 | Hand labeling device | — | 1989-08-01 |
| 4815794 | Track chain roller with degradable spacer rings | Helmut Klaus, Heinz Lause | 1989-03-28 |