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US Patent: 21,783
Mode of reversing the chisel in mortising-machines
Patentee:
Frederick Stamm (exact or similar names) - Lancaster, PA

USPTO Classifications:
144/77

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:
John Franklin Reigart
M. Carpenter
Patent Dates:
Granted: Oct. 12, 1858

Patent Pictures:
USPTO (New site tip)
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