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US Patent: 8,966
Mortising-machine
Patentee:
John B. Chambers (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
144/67

Tool Categories:
woodworking machines : joint making machines : mortising machines
woodworking machines : wood drilling and boring : mortising machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Oliver Lesby
William P. Elliot

Patent Dates:
Granted: May 25, 1852

Patent Pictures:
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