Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425211 | Self-closing fire rated floor door | David R. Wise, Jerome E. Beck | 2002-07-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6425211 | Self-closing fire rated floor door | David R. Wise, Jerome E. Beck | 2002-07-30 |