Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980571 | Methods and apparatus for measuring sidestream smoke | Douglas D. McRae, Bobby W. Francis, Roger A. Comes, Randall K. Greene | 1990-12-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980571 | Methods and apparatus for measuring sidestream smoke | Douglas D. McRae, Bobby W. Francis, Roger A. Comes, Randall K. Greene | 1990-12-25 |