Automatic pencil with function of avoiding core breaking and clamping

The utility model discloses an automatic pencil with a function of avoiding core breaking and clamping. The automatic pencil is characterized by comprising a core guide tube (6) and a core storage tube (17), wherein a left semi-opened ladder-shaped groove (27) and a right semi-opened ladder-shaped g...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	WANG WULONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUREAU ACCESSORIES IMPLEMENTS FOR WRITING OR DRAWING PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
Online-Zugang:	Volltext bestellen
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