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US Patent: 2,227,281
Tap
Patentee:
Herbert J. Smith (exact or similar names) - Greenfield, MA

USPTO Classifications:
408/222, 408/233, 470/200

Tool Categories:
industrial tools : taps and dies
metalworking tools : taps and dies

Assignees:
None

Manufacturer:
Threadwell Tap & Die Co. - Greenfield, MA

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 07, 1939
Granted: Dec. 31, 1940

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
This tap uses inserted cutters.

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