Novel pencil sharpener structure

The utility model discloses a novel pencil sharpener structure which comprises a base body and a knife rest installed above the inner bottom face of the base body, a boss is arranged on the inner bottom face of the base body and located on one side of the knife rest, a locating groove is formed in t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ZHENG CHONGTING, CHEN JIANWANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
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