Richard G. Walters

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Racine, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Composite developer-etch composition for chromium-plated lithograph...
- Patent number 4,049,453
- Issue date Sep 20, 1977
- Printing Developments, Inc.
- Vincent A. Pagliaro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Composite developer-etch composition for chromium-plated lithograph...
- Patent number 4,022,619
- Issue date May 10, 1977
- Printing Developments, Inc.
- Vincent A. Pagliaro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY