Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820556 | Decorative shelf system for aquarium or terrarium | Marvin Goldman, Gerald Phillips, Eric Sauerman | 1989-04-11 |
| 4804012 | Aquarium air valve system and hanger unit | Marvin Goldman, Gerald Phillips, Terry Goldman | 1989-02-14 |