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US Patent: 2,566,685
Micrometer Calipers
Patentee:
Francis Tvrzicky (exact or similar names) - Chicago, IL

USPTO Classifications:
188/83, 33/802, 74/30

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 20, 1945
Granted: Sep. 04, 1951

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
John F. Brezina - patent attorney

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