Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5902414 | Apparatus and method for renovating playing surfaces | Mark Anthony Keal | 1999-05-11 |
| 4555749 | LED Circuit board indicator housing and tie-bar assembly | Gary L. Rifkin, Sam Zilber, Michael V. Hamby | 1985-11-26 |