Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D272862 | Engine washing and cleaning apparatus | Helmut Schauer | 1984-02-28 |
| D271146 | Cleaning apparatus for automotive engine parts and the like | Helmut Schauer | 1983-10-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D272862 | Engine washing and cleaning apparatus | Helmut Schauer | 1984-02-28 |
| D271146 | Cleaning apparatus for automotive engine parts and the like | Helmut Schauer | 1983-10-25 |