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US Patent: 2,728,145
Screw gauge
Patentee:
Forrest E. Holladay (exact or similar names) - Portland, OR

USPTO Classifications:
33/199R, 33/555.2

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 20, 1953
Granted: Dec. 27, 1955

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
Description:
Seen on "Screw Check'r" screw gauges, in imperial and metric versions. We have not seen one marked with a maker's name.

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