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US Patent: 107,757
Improvement in planes
Patentee:
Timothy O. Callahan (exact or similar names) - Boston, MA

USPTO Classifications:
144/121, 30/489

Tool Categories:
woodworking tools : planes : floor planes

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward Griffith
Frederick Curtis
Patent Dates:
Granted: Sep. 27, 1870

Patent Pictures:
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