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US Patent: 2,521,825
Micrometer Caliper
Patentee:
William X. Brown (exact or similar names) - Los Angeles, CA

USPTO Classifications:
33/831

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: Oct. 11, 1946
Granted: Sep. 12, 1950

Patent Pictures:
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