Inventor · disambiguated record
Heinz E. Hertel
Also filed as: HERTEL HEINZ · HERTEL HEINZ E
5 granted patents·41 citations·filing 1975–1986
79Inventor score
Files withBELL & HOWELL CO5
Top patents by PatentIndex Score
5 records- 0170US4634071ALight tight film cartridge with floating light sealBELL & HOWELL CO·Filed 1985·Granted Jan 6, 1987·14 cites·20 claims
- 0270US4241992ARecorded image detection system for updatable microfilmBELL & HOWELL CO·Filed 1979·Granted Dec 30, 1980·8 cites·44 claims
- 0353US3982709AFilm core with restrainerBELL & HOWELL CO·Filed 1975·Granted Sep 28, 1976·10 cites·11 claims
- 0435US4697919AFilm developing system for microimage recording apparatusBELL & HOWELL CO·Filed 1986·Granted Oct 6, 1987·6 cites·20 claims
- 0532US4008861AWeb roll retainerBELL & HOWELL CO·Filed 1975·Granted Feb 22, 1977·3 cites·10 claims
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