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US Patent: 413,007
Joist-crowning machine
Patentee:
Charles B. Woodruff (exact or similar names) - Duluth, MN

USPTO Classifications:
83/425.3, 83/435.11, 83/435.2

Tool Categories:
woodworking machines : circular saws : circular ripsaws

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank Crassveller
Walter Ayers
Patent Dates:
Applied: Dec. 28, 1888
Granted: Oct. 15, 1889

Patent Pictures:
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