Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D305096 | Retractable blade knife | Wallace Tench, Christopher Collins, Gordon Bremmer | 1989-12-19 |
| D303921 | Utility knife or similar article | Alfred Blochlinger, Christopher Collins, Wallace Tench | 1989-10-10 |
| D303731 | Knife scabbard | Alfred Blochlinger, Christopher Collins, Wallace Tench | 1989-10-03 |
| 4862590 | Retractable blade knife | Frank L. Winyard, Gordon Bremner | 1989-09-05 |
| 4825544 | Scissors sharpener | — | 1989-05-02 |