Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D266005 | Calculator keyboard module | Myron Beitler | 1982-08-31 |
| 4333155 | Calculator having a modular keyboard | — | 1982-06-01 |
| 4323979 | Cartridge and bezel assembly for a calculator | — | 1982-04-06 |