Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D261660 | Photoprinting machine | Carl Hardy | 1981-11-03 |
| 4266869 | Apparatus and method for making lithographic printing plates | Manfred R. Kuehnle, Richard E. Cox, George B. Harris, Jr., Carl Hardy | 1981-05-12 |