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US Patent: 239,389
Polishing and grinding machine
Patentee:
David R. B. Kenyon - Providence, RI

USPTO Classifications:
384/253, 451/361, 474/113

Tool Categories:
metalworking machines : grinders : sharpening machines : bench or pedestal grinders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jonathan Cady
George H. Remington

Patent Dates:
Applied: Jan. 17, 1881
Granted: Mar. 29, 1881

Patent Pictures:
USPTO pdf tiff
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