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US Patent: 2,933,816
Micrometer Calipers
Patentee:
Roland E. Gunther (exact or similar names) - Princeton Junction, NJ

USPTO Classifications:
33/819, 33/820

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
no listed

Patent Dates:
Applied: May 23, 1947
Granted: Apr. 26, 1960

Patent Pictures:
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