Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5802402 | Camera back including improved film assemblage | Thomas H. Campbell, Jr., Edward H. Coughlin | 1998-09-01 |
| 5721966 | Instant photography camera and film cassette | Thomas H. Campbell, Jr., Edward H. Coughlin | 1998-02-24 |
| 5345289 | Film cassette dark slide incorporating a projection for restraining impact-generated movement | — | 1994-09-06 |
| 4839676 | Film cassette-liquid spread roller assembly interface | John I. Sturgis, George D. Whiteside | 1989-06-13 |
| 4668062 | Apparatus for precluding rotational movement of an advancing film unit | — | 1987-05-26 |
| 4319827 | Method for assembling photographic self-processing apparatus | Stephen W. Carter, Harvey S. Friedman | 1982-03-16 |