Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D319863 | Retainer cap for fishing rod holder | William J. Preinsberger | 1991-09-10 |
| 4856220 | Retainer cap for spinning rod holder | William J. Preinsberger | 1989-08-15 |
| 4807415 | Vapor barrier hole plug | — | 1989-02-28 |