Gerald D. Crosby

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for treating pulp with oxygen in a multi-stage...
- Patent number 4,298,426
- Issue date Nov 3, 1981
- Weyerhaeuser Company
- Louis O. Torregrossa
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE