MECHANICAL PENCIL

PROBLEM TO BE SOLVED: To solve a problem wherein a weight body abuts on an outer collar of a lead tank in front and a front end of a knob in the rear every time a lead is delivered, resulting in making impact sounds of click-clack every time the weight body abuts on the outer collar and the knob and...

Ausführliche Beschreibung

Bibliographische Detailangaben

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