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Electronic Pencil Sharpener - Patent application

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Patent US7699082 - Electric multi-pencil sharpener - Google Patents

Patent US7699082 - Electric multi-pencil sharpener - Google Patents

Patent US20060086416 - Pencil sharpener - Google Patents

Patent US20060086416 - Pencil sharpener - Google Patents

Electronic Pencil Sharpener - Patent application

Electronic Pencil Sharpener - Patent application

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Look sharp. – Present&Correct

Patent EP2078617A1 - Safety device for an electric pencil sharpener

Patent EP2078617A1 - Safety device for an electric pencil sharpener

Patent US3134365 - Electric pencil sharpener - Google Patents

Patent US3134365 - Electric pencil sharpener - Google Patents

Patent US7472728 - Electrically powered rapid sharpening cosmetic

Patent US7472728 - Electrically powered rapid sharpening cosmetic

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