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US Patent: 142,669
Improvement in cutter-heads
Patentee:
Edwin Benjamin (exact or similar names) - Chicago, IL

USPTO Classifications:
144/225

Tool Categories:
woodworking machines : machine and tool cutters : cutterheads

Assignees:
Samuel W. Pease - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
G. L. Chapin
W. C. Bruson

Patent Dates:
Applied: May 06, 1872
Granted: Sep. 09, 1873

Patent Pictures:
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