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US Patent: 109,154
Improvement in Countersinks
Patentee:
Delay F. Sutton (exact or similar names) - Toledo, OH

USPTO Classifications:
408/156, 408/161

Tool Categories:
woodworking tools : hand drills : drill bits : countersinks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank Collins
C. L. Evert
Patent Dates:
Granted: Nov. 08, 1870

Patent Pictures:
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