Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820152 | Single multi-function handpiece for dental instruments | George E. Warrin, Rene J. Perdreaux, Richard H. Paschke, Teodor E. Constantinescu | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820152 | Single multi-function handpiece for dental instruments | George E. Warrin, Rene J. Perdreaux, Richard H. Paschke, Teodor E. Constantinescu | 1989-04-11 |