Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363557 | Marking device for shorthand machine | Frank Chvojcsek | 1982-12-14 |
| 4323316 | Shorthand machine paper gauge | Ralph E. Zum Bahlen | 1982-04-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363557 | Marking device for shorthand machine | Frank Chvojcsek | 1982-12-14 |
| 4323316 | Shorthand machine paper gauge | Ralph E. Zum Bahlen | 1982-04-06 |