Pencil lead for writing, drawing and painting instruments

The present invention provides a lead for writing, drawing and painting utensils has a colorant lead core and at least one lead coat extending in the direction of the longitudinal axis. The at least one lead coat envelopes the lead core as seen in cross section of the lead and the lead coat and lead...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	REINER JUERGEN, LEHRER CHRISTA, NEIN ROBERT, HEINDL MAX, THIES ANDREAS, DELAPIERRE CHRISTINE, OCHSENKUEHN FRANZ
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUREAU ACCESSORIES IMPLEMENTS FOR WRITING OR DRAWING PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!