Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4239016 | Apparatus for handling flexible sheet while applying graded shade band thereon | William P. Cathers | 1980-12-16 |
| 4200420 | Frame having rotating orienting members | William P. Cathers | 1980-04-29 |