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US Patent: 3,557,849
Tree harvester
Patentee: Edwin O. Martinson (exact or similar names) - Milwaukee, WI USPTO Classifications: 144/4.1, 414/23 Tool Categories: woodworking machines : specialty woodworking machines : tree felling machines Assignees: Koehring-Waterous Ltd. - Brantford, ON Canada Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 11, 1969 Granted: Jan. 26, 1971 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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