Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864534 | Apparatus and method for entering setting commands in a computer-controlled interlocking system | Harald Schulz | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864534 | Apparatus and method for entering setting commands in a computer-controlled interlocking system | Harald Schulz | 1989-09-05 |