Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4355812 | Stack of cards representing dice and backgammon game | — | 1982-10-26 |
| 4334524 | Solar heater with bondless honeycomb heat trap | Thomas A. Hewett | 1982-06-15 |
| 4323053 | Solar heater with integral heat trap glazing | Thomas A. Hewett | 1982-04-06 |