Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265558 | Differential key lock mechanism for justifying text writing composing machine | by Walter S. Gubelmann, executor, William R. Grier | 1981-05-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265558 | Differential key lock mechanism for justifying text writing composing machine | by Walter S. Gubelmann, executor, William R. Grier | 1981-05-05 |