Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4508686 | Film strip for rapid test of a film processor | Charles W. Buenzli, Jr. | 1985-04-02 |
| 4365895 | Method, apparatus and film strip of particular design for rapid test of a film processor | Charles W. Buenzli, Jr. | 1982-12-28 |