Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440070 | Mobile adjustable curtain apparatus for use in room and pillar coal mining ventilation system | Paul V. Baker | 1984-04-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440070 | Mobile adjustable curtain apparatus for use in room and pillar coal mining ventilation system | Paul V. Baker | 1984-04-03 |