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Patent US3678975 - Electric pencil sharpener - Google Patents

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Patent US7472728 - Electrically powered rapid sharpening cosmetic

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KS Manual Classroom Pencil Sharpener by X-ACTO® EPI1031LMR

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Pencil-Sharpener. - The Portal to Texas History

Patent EP2078617B1 - Safety device for an electric pencil sharpener
Patent EP2078617B1 - Safety device for an electric pencil sharpener

ELECTRIC PENCIL SHARPENER WITH A REPLACEABLE CUTTER ASSEMBLY - Patent
ELECTRIC PENCIL SHARPENER WITH A REPLACEABLE CUTTER ASSEMBLY - Patent

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wiring diagram electric pencil sharpener - Wiring Diagram

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

Patent EP2078617A1 - Safety device for an electric pencil sharpener
Patent EP2078617A1 - Safety device for an electric pencil sharpener

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

Pencil Sharpener - Patent application
Pencil Sharpener - Patent application