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US Patent: 1,591,740
Micrometer
Patentee:
Joseph Brewer (exact or similar names) - New York, NY

USPTO Classifications:
33/818

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frederick Diehl

Patent Dates:
Applied: Aug. 04, 1921
Granted: Jul. 06, 1926

Patent Pictures: [ 1 | 2 ]
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