Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754875 | Roll film magazine frame for supporting film receiving film spool and using in a reading device | Eugen Schuhmeir, Gunter Czapla | 1988-07-05 |
| 4564276 | Microfilm sensing device with a projection lamp and cold-light mirror | Wilfried Hofmann, Herbert Lusch, Eberhard Zieran, Jurgen Sylla | 1986-01-14 |
| 4371242 | Objective lens exchanging arrangement in a microfilm reader | Karl-Heinz Dietrich, Josef Gruber, Peter Nassl | 1983-02-01 |
| 4317619 | Microfiche apparatus | — | 1982-03-02 |
| 4244641 | Microfilm reader | Wilfried Hofmann, Guenther Lueder, Peter Nassl, Peter Puechler, John Krueger +1 more | 1981-01-13 |
| 4235536 | Microfilm reader | Wilfried Hofmann, Herbert Lusch | 1980-11-25 |