Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1994 | Invention patented by Darryl C. Bodine and G. Douglas Vernau on August 28th, 1994. Abstract: A ceiling board has a depression formed in the four corners of the face surface of the ceiling board. When the horizontal flange of one cross runner overlies the horizontal flange of the main runner, the edge of the ceiling board will rest on the flange of the main runner because the overlying runner is accommodated in the corner depression. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
