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US Patent: 1,593,753
Micrometer Caliper
Patentee:
Phillip J. Darlington (exact or similar names) - Brookline, MA

USPTO Classifications:
33/199R, 33/501.2, 33/804

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Mar. 25, 1925
Granted: Jul. 27, 1926

Patent Pictures:
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