Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831273 | Mailing machine sensing device | William A. Ross, William D. Toth | 1989-05-16 |
| 4809186 | Postage meter for metering mixed weight mail | Seymour Feinland, Raymond R. Crowley | 1989-02-28 |