Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D277503 | Dental cuspidor | George McGaha | 1985-02-05 |
| D276766 | Chair | — | 1984-12-18 |
| D267987 | Treatment chair | Dennis F. Leffler, Edward C. Landan | 1983-02-22 |
| D267680 | Chair | Dennis F. Leffler | 1983-01-25 |
| D266291 | Chair | Dennis F. Leffler | 1982-09-28 |
| D266292 | Stool | Dennis F. Leffler | 1982-09-28 |