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US Patent: 869,697
Micrometer Screw Gage
Patentees:
Oskar Eilhauer (exact or similar names) - Neustadt, Saxe-Weimar-Eisenach, Germany
Paul Rückert (exact or similar names) - Gera, , Reuss, Germany

USPTO Classifications:
33/813

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 14, 1907
Granted: Oct. 29, 1907

Patent Pictures:
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