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US Patent: 166,318
Screw Taps
Patentee:
John E. Sweet (exact or similar names) - Ithaca, Tompkins County, NY

USPTO Classifications:
408/218, 470/198

Tool Categories:
metalworking tools : taps and dies

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 28, 1875
Granted: Aug. 03, 1875

Patent Pictures:
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