Leo Klawansky

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West Warwick, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Positive novolak photoresist compositions
- Patent number 4,377,631
- Issue date Mar 22, 1983
- Philip A. Hunt Chemical Corporation
- Medhat A. Toukhy
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...