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US Patent: 548,051
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Patentee:
Amos Hartley (exact or similar names) - Ottawa, Franklin County, KS

USPTO Classifications:
451/154, 451/246, 451/374

Tool Categories:
metalworking machines : grinders : tool grinders

Assignees:
Amos Hartley - Ottawa, Franklin County, KS
A. J. Schaefer - Ottawa, Franklin County, KS

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 03, 1894
Granted: Oct. 15, 1895

Patent Pictures:
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