Ralph L. Charnley

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Minneapolis, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Anti-oxidation fluid replenisher control system for processor of ph...
- Patent number RE31484
- Issue date Jan 3, 1984
- Pako Corporation
- Theodore A. Melander
- 354 -
Information Patent Grant
Anti-oxidation fluid replenisher control system for processor of ph...
- Patent number 4,174,169
- Issue date Nov 13, 1979
- Pako Corporation
- Theodore A. Melander
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic density measurement calibration for photographic replenis...
- Patent number 4,128,325
- Issue date Dec 5, 1978
- Pako Corporation
- Theodore A. Melander
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic replenisher system for a photographic processor
- Patent number 4,057,818
- Issue date Nov 8, 1977
- Pako Corporation
- Alfred J. Gaskell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY