R. Marvin Thomas

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Middletown, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of operating a disk refiner provided with reversible refinin...
- Patent number 4,171,101
- Issue date Oct 16, 1979
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Reversible disk refiner plates
- Patent number 4,081,147
- Issue date Mar 28, 1978
- The Black Clawson Company
- Peter Seifert
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE