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US Patent: 81,595
Improvement in spoke-tenoning machines
Patentees:
A. Harvey Calhoun (exact or similar names) - West Lebanon, PA
George W. Collins (exact or similar names) - West Lebanon, PA

USPTO Classifications:
144/202

Tool Categories:
woodworking machines : joint making machines : tenoning machines
trade specific : wheelwright

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Sep. 01, 1868

Patent Pictures:
USPTO (New site tip)
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