Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467121 | Rotary tube scrubber | Joseph J. Franzino | 2002-10-22 |
| 5636403 | Tube cleaning apparatus | Arvid K. Grimsley, Joseph J. Franzino | 1997-06-10 |
| 5426807 | Tube cleaning apparatus | Arvid K. Grimsley, Joseph J. Franzino | 1995-06-27 |
| 4858174 | Electronic postage meter control system employing a membrane switch mechanism | — | 1989-08-15 |