Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820171 | Coupling plate having a plurality of electric coupling points, a method of producing such a plate and a use of the coupling plate as a planning board | — | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820171 | Coupling plate having a plurality of electric coupling points, a method of producing such a plate and a use of the coupling plate as a planning board | — | 1989-04-11 |