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US Patent: 928,331
File-sharpener
Patentee:
Joseph C. Rink (exact or similar names) - Erie, PA

USPTO Classifications:
451/101, 451/79

Tool Categories:
metalworking machines : grinders : sharpening machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas C. Miller
H. M. Sturgeon
Patent Dates:
Applied: Jan. 08, 1909
Granted: Jul. 20, 1909

Patent Pictures:
USPTO (New site tip)
Google Patents
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