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US Patent: 323,826
Shaft Liner
Patentees:
Walter J. S. Osborn (exact or similar names) - Shelby, OH
James Madden (exact or similar names) - Shelby, OH

USPTO Classifications:
33/332, 33/339

Tool Categories:
layout tools : special purpose gauges

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William Owings
Sam D. Owings
William L. Sheideu
L. U. Bates

Patent Dates:
Applied: Jul. 25, 1884
Granted: Aug. 04, 1885

Patent Pictures:
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