Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421797 | Method and device for the dry-spray application of concrete to a substrate | — | 1983-12-20 |
| 4417966 | Apparatus and method of producing ozone | Ralf Krauss | 1983-11-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4421797 | Method and device for the dry-spray application of concrete to a substrate | — | 1983-12-20 |
| 4417966 | Apparatus and method of producing ozone | Ralf Krauss | 1983-11-29 |