US Patent: 2,253,491 - Threading tool


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US Patent: 2,253,491

Threading tool

Patentee:

Harding F. Bakewell (exact or similar names) - San Marino, CA

USPTO Classifications:

408/140, 470/198

Tool Categories:

industrial tools : taps and dies

metalworking tools : taps and dies

Assignees:

None

Manufacturer:

Bakewell Mfg. Co. - Los Angeles, CA

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 07, 1940
Granted:	Aug. 26, 1941

Patent Pictures:

USPTO (New site tip)
Google Patents
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"Vintage Machinery" entry for Bakewell Manufacturing Co.

Description:

"This invention is a threading tool, either a tap having an exterior cutting-thread for internal threading the work or a die having an interior cutting-thread for externally threading the work."