Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4589775 | Apparatus and method for accumulating and measuring sidestream smoke produced by a smoking material | John M. Martin, Clifton T. Mansfield | 1986-05-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4589775 | Apparatus and method for accumulating and measuring sidestream smoke produced by a smoking material | John M. Martin, Clifton T. Mansfield | 1986-05-20 |