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Patent US6886614 - Pencil sharpener - Google Patents

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Staples 34462 Electric Pencil Sharpener Gears Replacement - iFixit

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Patent US8205649 - Cutter assembly and electric pencil sharpener

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Patent US20060086416 - Pencil sharpener - Google Patents
Patent US20060086416 - Pencil sharpener - Google Patents

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Patent US20080128050 - Pencil Sharpener with Automatic Shut-off

Patent US7699082 - Electric multi-pencil sharpener - Google Patents
Patent US7699082 - Electric multi-pencil sharpener - Google Patents

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Staples 34462 Electric Pencil Sharpener A/C Motor Replacement - iFixit

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Patent US7472728 - Electrically powered rapid sharpening cosmetic

Patent US20070251105 - Electric pencil sharpener - Google Patents
Patent US20070251105 - Electric pencil sharpener - Google Patents