Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858628 | Smoking machine | Alan B. Norman, David William Griffith, Jr., Dewey L. Holt, Stephen Benson Sears | 1989-08-22 |
| 4854331 | Smoking article | Chandra Kumar Banerjee, Ernest G. Farrier, James L. Harris, Alan B. Norman, James L. Resce +4 more | 1989-08-08 |