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US Patent: 252,943
Machine for Grinding the Laps of Polishing Machines
Patentee:
Anthony Hessels (exact or similar names) - New York, NY

USPTO Classifications:
451/146

Tool Categories:
metalworking machines : grinding machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 17, 1881
Granted: Jan. 31, 1882

Patent Pictures:
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