Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314906 | Water purification by chlorinating, holding, and aerating | Robert L. Koch, Jr. | 1982-02-09 |
| D262789 | Safety device for self propelled land vehicles | — | 1982-01-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314906 | Water purification by chlorinating, holding, and aerating | Robert L. Koch, Jr. | 1982-02-09 |
| D262789 | Safety device for self propelled land vehicles | — | 1982-01-26 |