Donnavon David Shaffer

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Lititz, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for preparing copper-aluminum-gold-activated zinc-sulfide ph...
- Patent number 4,316,816
- Issue date Feb 23, 1982
- RCA Corporation
- Martin R. Royce
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Manganese-and-magnesium-activated strontium sulfide phosphors
- Patent number 3,977,991
- Issue date Aug 31, 1976
- RCA Corporation
- Arthur Leo Smith
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...