Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536422 | Saw for cutting green concrete | Edward A. Zuzelo | 2003-03-25 |
| 5950612 | Apparatus for cutting concrete | Edward A. Zuzelo | 1999-09-14 |
| 4623795 | Irradiating device | Arthur A. Knopp, Nathaniel H. Lieb | 1986-11-18 |
| 4477252 | Fiber optic system for dental handpiece | Nathaniel H. Lieb, James L. Alago | 1984-10-16 |
| 4318695 | Handpiece | Nathaniel H. Lieb | 1982-03-09 |
| 4313725 | Dental handpiece and collet wrench therefor | Nathaniel H. Lieb, James L. Alago | 1982-02-02 |