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US Patent: 1,435,025
Micrometer Adjustment
Patentee: Fred R. Sommer (exact or similar names) - Brooklyn, NY USPTO Classifications: 33/818, 359/379 Tool Categories: layout tools : measurement gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: Emory L. Sroff A. J. Cooper Chas. L. Greisbauer	Patent Dates: Applied: Jun. 15, 1920 Granted: Nov. 07, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This patent covers a method of setting the zero-point on a micrometer.

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