Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969478 | Portable cigarette ashtray | Itzhak Keidar, Menahem Tilman | 1990-11-13 |
| 4919427 | Moebius ring puzzle | Itzhak Keidar, Menahem Tilman | 1990-04-24 |
| 4886161 | Container for cigarettes, and cardboard blank for use in making same | Itzhak Keidar, Menahem Tilman, Joseph Harel | 1989-12-12 |