US Patent: 172,092 - Improvement in saw-sharpening machines


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US Patent: 172,092

Improvement in saw-sharpening machines

Patentee:

William L. Covel (exact or similar names) - 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:

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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.