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US Patent: 5,902
Universal Instrument Sharpener
Honing Machine
Patentees:
William Z. W. Chapman - Philadelphia, PA
John W. Chapman - Philadelphia, PA

USPTO Classifications:
451/164, 451/367

Tool Categories:
metalworking machines : grinders : sharpening machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William P. Elliot
P. H. Watson

Patent Dates:
Granted: Nov. 07, 1848

Patent Pictures: [ 1 | 2 ]
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