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US Patent: 450,879
Reamer
Patentee:
Benjamin B. Allen (exact or similar names) - Nashville, Davidson County, TN

USPTO Classifications:
408/200, 408/233

Tool Categories:
metalworking machines : drilling and boring : drill bits : reamers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jan. 31, 1891
Granted: Apr. 21, 1891

Patent Pictures:
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