Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343981 | Resistance welding machine | — | 1982-08-10 |
| 4328145 | Additive for air-entrained super plasticized concrete, concrete produced thereby and method of producing air-entrained super plasticized concrete | Gregory S. Bobrowski | 1982-05-04 |
| 4319112 | Screen welding machine | — | 1982-03-09 |