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US Patent: 318,051
Screw Thread Gage
Patentee:
Laroy Sunderland Starrett - Athol, MA

USPTO Classifications:
33/199R

Tool Categories:
metalworking tools : machinist tools : measuring tools : thread gages

Assignees:
None

Manufacturer:
L. S. Starrett Co. - Athol, MA

Witnesses:
Andrew J. Hamilton
Emma L. Hamilton

Patent Dates:
Applied: Sep. 05, 1883
Granted: May 19, 1885

Patent Pictures:
USPTO pdf tiff
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Description:
Thread gage is placed on the edge of the gage instead of on the end of the gage as was the previous norm. This arrangement also allows interior threads to be easily measured. Sold as their model 4 and model 40.

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