Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5794409 | Method of processing and stuffing an envelope | David E. Washburn, John Moore | 1998-08-18 |
| 5687903 | Envelope sheet and method of processing | David E. Washburn, John Moore | 1997-11-18 |