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US Patent: 91,269
Improvement in cutter-head
Patentees:
Charles Richards (exact or similar names) - Cleveland, OH
Willard Curtiss (exact or similar names) - Cleveland, OH

USPTO Classifications:
144/219

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Jun. 15, 1869

Patent Pictures:
USPTO (New site tip)
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