Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661291 | Audio proof of delivery system and method | Kevin J. Ahearn, Frederick M. Weaver, James M. DeArras, James A. Trautwein | 1997-08-26 |
| 5659761 | Data recognition apparatus and portable data reader having power management system | James M. DeArras, Lawrence R. Ober, Bengt E. Salmonsson, Joseph W. Lowe, Walter C. Simciak +1 more | 1997-08-19 |