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US Patent: 139,142
Improvement in edging-machines
Patentees:
Otto H. Gronberg (exact or similar names) - Ferrysburg, MI
William M. Ferry (exact or similar names) - Grand Haven, MI

USPTO Classifications:
83/508.3

Tool Categories:
woodworking machines : circular saws : circular ripsaws

Assignees:
None

Manufacturer:
Ottawa Iron Works - Ferrysburgh, MI

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 08, 1873
Granted: May 20, 1873

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Ottawa Iron Works

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