US Patent: 1,434,101 - Automatic Drill and Wire Gauge


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US Patent: 1,434,101

Automatic Drill and Wire Gauge

Patentee:

Edmund Curran (exact or similar names) - Boston, MA

USPTO Classifications:

33/679.1

Tool Categories:

layout tools : measurement gauges

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 06, 1920
Granted:	Oct. 31, 1922

Patent Pictures:

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Description:

This is a dial indicator designed for measuring the diameter of circular objects. It is provided with a special scale allowing it to read standard wire and drill gauges.