Cletus N. Welch

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Massillon, OH, US

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Patents Applicationslast 30 patents

Information Patent Application
Photochromic polymerizable compositions
- Publication number 20030136948
- Publication date Jul 24, 2003
- Cletus N. Welch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...