J. David McDonald

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Vaudreuil, CA

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Patents Grantslast 30 patents

Information Patent Grant
Wet cellulosic web transfer method using air doctor blade
- Patent number 5,232,555
- Issue date Aug 3, 1993
- Pulp and Paper Research Institute of Canada
- Robert Daunais
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE