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US Patent: 93,031
Improvement in Grinding Edge-Tools
Patentee:
Lorenzo Zimmerman (exact or similar names) - Wakeshma, MI

USPTO Classifications:
451/367

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Samuel C. Rosenberry
Sylvester Fredenburgh
Patent Dates:
Granted: Jul. 27, 1869

Patent Pictures:
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