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US Patent: 3,606,177
Wood pulp grinder
Patentees: John J. Denovan (exact or similar names) - Brantford, ON Canada Donald K. Alexander (exact or similar names) - Fort William, ON Canada USPTO Classifications: 241/167, 241/282, 241/42 Tool Categories: woodworking machines : specialty woodworking machines : wood grinding machines specialty machines : paper making machines Assignees: Koehring-Waterous Ltd. - Brantford, ON Canada Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 20, 1969 Granted: Sep. 20, 1971 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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