Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4414317 | Transparency, a method for forming it and a photographic mask whose optical densities are correlated with the contour of a surface | Charles R. Culp, Walter J. Lewicki, Jr. | 1983-11-08 |
| 4310581 | Surface covering articles | Richard E. Felter, John R. Eshbach, Jr., Thomas Posipanko | 1982-01-12 |