Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887968 | Electronic sketching device | Gerald P. Selden | 1989-12-19 |
| 4877954 | Light counting system for convex articles | Arnold I. Neuman, Thomas Heidt, Andrew I. Bergman | 1989-10-31 |
| 4875107 | Camcorder | Thomas Heidt | 1989-10-17 |