Frank L. Steckhahn

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Walnut Creek, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Ultraviolet protectorant composition
- Patent number 3,987,001
- Issue date Oct 19, 1976
- Chevron Research Company
- Carroll J. Wedel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...