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Patent US20060086416 - Pencil sharpener - Google Patents

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Small Electric Pencil Sharpener, Black | Bostitch Office

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How to Make An Electric Pencil Sharpener at Home | Automatic Pencil

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Patent US7699082 - Electric multi-pencil sharpener - Google Patents

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Patent US7699082 - Electric multi-pencil sharpener - Google Patents

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Patent US7472728 - Electrically powered rapid sharpening cosmetic

Pencil_sharpener_mechanism – JSTM
Pencil_sharpener_mechanism – JSTM

Patent US3486540 - Electric pencil sharpener - Google Patents
Patent US3486540 - Electric pencil sharpener - Google Patents

Mechanism Description: Electric Pencil Sharpener - Wisc-Online OER
Mechanism Description: Electric Pencil Sharpener - Wisc-Online OER

Patent US3486540 - Electric pencil sharpener - Google Patents
Patent US3486540 - Electric pencil sharpener - Google Patents

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

Pencil Sharpener - Patent application
Pencil Sharpener - Patent application

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


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