John A. Clark

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Altrincham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Multicolor holograms using gelatin as the binder and method for pro...
- Patent number 4,816,360
- Issue date Mar 28, 1989
- Ciba-Geigy AG
- James Doyle
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing a hologram
- Patent number 4,748,097
- Issue date May 31, 1988
- Ciba-Geigy AG
- John A. Clark
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of preparing a hologram
- Patent number 4,720,441
- Issue date Jan 19, 1988
- Ciba-Geigy AG
- John A. Clark
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY