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US Patent: 412,631
Watch-crystal gage
Patentee:
Oscar C Kraehmer (exact or similar names) - Galena, IL

USPTO Classifications:
33/679.1

Tool Categories:
trade specific : watchmaker

Assignees:
None

Manufacturer:
Harding Brothers - Chicago, IL

Witnesses:
Frank Bostwick
David S Farley
Patent Dates:
Applied: Sep. 17, 1888
Granted: Oct. 08, 1889

Patent Pictures: [ 1 | 2 ]
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