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US Patent: 402,715
Pencil-sharpener
Patentee: Benjamin N. Black (exact or similar names) - Paterson, NJ USPTO Classifications: 144/28.11, 144/28.4 Tool Categories: household : pencil sharpeners Assignees: None Manufacturer: E. L. Kellogg & Co. - New York, NY Witnesses: George T. Pinckney William G. Mott	Patent Dates: Applied: Nov. 06, 1888 Granted: May 07, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: According to the Office Museum website this invention was sold as the "Unique Pencil Sharpener" by E. L. Kellogg & Co.

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