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US Patent: 170,909
Improvement in barrel-shaping machines
Patentee:
Heman S. Smith (exact or similar names) - Brooklyn, NY

USPTO Classifications:
144/359, 147/5

Tool Categories:
woodworking machines : specialty woodworking machines : barrel making machines
trade specific : cooper

Assignees:
Alanson T. Briggs - New York, NY
William H. Thrall - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Robert M. Barr
J. William Garner

Patent Dates:
Applied: Oct. 08, 1875
Granted: Dec. 07, 1875

Patent Pictures:
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