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US Patent: 543,486
Twist Drill Body Clearing Machine
Patentee:
Moses C. Johnson (exact or similar names) - Danbury, Fairfield County, CT

USPTO Classifications:
409/73

Tool Categories:
tool making : making drills and augers

Assignees:
T & B Tool Co. - Danbury, Fairfield County, CT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 07, 1894
Granted: Jul. 30, 1895

Patent Pictures:
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