Heinz E. Hertel

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Mount Prospect, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Film developing system for microimage recording apparatus
- Patent number 4,697,919
- Issue date Oct 6, 1987
- Bell & Howell Company
- Heinz E. Hertel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light tight film cartridge with floating light seal
- Patent number 4,634,071
- Issue date Jan 6, 1987
- Bell & Howell Company
- Heinz E. Hertel
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recorded image detection system for updatable microfilm
- Patent number 4,241,992
- Issue date Dec 30, 1980
- Bell & Howell Company
- John R. Flint
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Web roll retainer
- Patent number 4,008,861
- Issue date Feb 22, 1977
- Bell & Howell Company
- Heinz E. Hertel
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Film core with restrainer
- Patent number 3,982,709
- Issue date Sep 28, 1976
- Bell & Howell Company
- Heinz E. Hertel
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL