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US Patent: 162,392
Improvement in saw-sharpening machines
Patentee:
John L. Knowlton (exact or similar names) - Sharon Hill, PA

USPTO Classifications:
76/41, 76/50, 76/50.2

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

Assignees:
None

Manufacturer:
John L. Knowlton - Sharon Hill, PA

Witnesses:
George S. Patchel
Henry McAllister

Patent Dates:
Applied: Feb. 05, 1875
Granted: Apr. 20, 1875

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Knowlton, Smith & Co.

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