Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860336 | Radiotelephone credit card data communications | Daniel S. Rokusek, Francis P. Tobolski, Jr. | 1989-08-22 |
| 4860341 | Radiotelephone credit card call approval synchronization | Francis P. Tobolski, Jr., Joseph L. Kowalski | 1989-08-22 |
| 4831647 | Radiotelephone credit card data communications | Daniel S. Rokusek, Francis P. Tobolski, Jr. | 1989-05-16 |