Charles S. Aldrich

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Toner metering apparatus
- Patent number 5,012,289
- Issue date Apr 30, 1991
- International Business Machines Corporation
- Charles S. Aldrich
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer station control in an electrophotographic reproduction device
- Patent number 5,012,293
- Issue date Apr 30, 1991
- International Business Machines Corporation
- Charles S. Aldrich
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Laser printer with light-exposure prevention
- Patent number 4,943,815
- Issue date Jul 24, 1990
- International Business Machines Corporation
- Charles S. Aldrich
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Proportional vertical and horizontal ribbon tracking for impact pri...
- Patent number 4,606,661
- Issue date Aug 19, 1986
- International Business Machines Corporation
- Charles S. Aldrich
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ribbon lift and feed mechanism for a typewriter
- Patent number 4,397,575
- Issue date Aug 9, 1983
- International Business Machines Corporation
- Charles S. Aldrich
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS