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US Patent: 172,092
Improvement in saw-sharpening machines
Patentee:
William L. Covel - Beloit, WI

USPTO Classifications:
76/43, 76/77

Tool Categories:
metalworking machines : grinders : sharpening machines : saw sharpening machines

Assignees:
None

Manufacturer:
Halladay, Litchfield & Co. - Chicago, IL

Witnesses:
Charles A. Pettit
Solon C. Kemon

Patent Dates:
Applied: Aug. 23, 1875
Granted: Jan. 11, 1876

Reissue Information:
Reissued as RE10,252 (Dec. 05, 1882)

Patent Pictures:
USPTO pdf tiff
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Description:
It appears that Halladay, Litchfield & Co. licensed this patent, based on the fact that the patent was reissued and that reissue was assigned to the principals of that firm.

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