Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247400 | Apparatus for producing elevations which can be detected in a tactile manner | Dietmar Litschel | 2001-06-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247400 | Apparatus for producing elevations which can be detected in a tactile manner | Dietmar Litschel | 2001-06-19 |