John D. Schellberg

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Downers Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing a purified 3,4-toluenediamine product and a m...
- Patent number 4,158,660
- Issue date Jun 19, 1979
- Olin Corporation
- David F. Gavin
- C07 - ORGANIC CHEMISTRY