Larry L. Langrehr

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Control system for photographic film printer
- Patent number 4,180,321
- Issue date Dec 25, 1979
- Bell & Howell Company
- Larry L. Langrehr
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Control system for photographic film printers
- Patent number 4,045,136
- Issue date Aug 30, 1977
- Bell & Howell Company
- Charles J. Watson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure control unit
- Patent number 4,009,959
- Issue date Mar 1, 1977
- Bell & Howell Company
- Charles J. Watson
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY