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US Patent: 42,990
Improvement in machines for trimming the bowls of tobacco-pipes
Patentee:
D. A. Dickinson (exact or similar names) - Baltimore, MD

USPTO Classifications:
144/137, 144/145.1

Tool Categories:
woodworking machines : specialty woodworking machines

Assignees:
Tobacco Pipe Co. - Baltimore, MD

Manufacturer:
Not known to have been produced

Witnesses:
Dan Rowlance
Thomas T. Everett
Patent Dates:
Granted: May 31, 1864

Patent Pictures:
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