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US Patent: 2,092,187
Device for sharpening blades
Patentee:
Joseph C. Schaf, Jr. (exact or similar names) - Indianapolis, IN

USPTO Classifications:
451/165

Tool Categories:

Assignees:
Joseph C. Schaf, Jr. - Indianapolis, IN
Wilfred K. Krauss - Indianapolis, IN
Ralph G. Lockwood - Indianapolis, IN

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 26, 1929
Granted: Sep. 07, 1937

Patent Pictures:
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Vintage Machinery entry for Syncro Corp.
Description:
This hone is intended for sharpening safety razor blades. It is of interest because it was manufactured by Syncro Corp. of Oxford, MI, which also made a small scrollsaw.

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