Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5606516 | Digitally compensated hydraulic scale system | Harry J. Keen | 1997-02-25 |
| 5304745 | Modular checkweigher and grading system | Frank J. Rusk, Walter W. Sevigny, Harry J. Keen | 1994-04-19 |
| 5207284 | Mechanical scale conversion system | Harry J. Keen | 1993-05-04 |
| 5203419 | Postal scale having extendable weight display for weighing oversize packages | — | 1993-04-20 |
| 4471442 | Modular electronic measuring and printing unit | James S. Havers | 1984-09-11 |
| 4393455 | Modular electronic measuring and printing unit | James S. Havers | 1983-07-12 |