COMBINATION WRITING INSTRUMENT

A writing instrument, which has an inner and outer writing element with separate writing medium reservoirs. The writing elements are coaxially mounted in an outer barrel and axially moveable with respect to one another. A driving mechanism may be actuated to allow a user to selectively extend one wr...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MATTHEWS, ROBERT E, ROLION, FRANCK, BEDHOME, VINCENT, COOPER, KENNETH R, EDGERLEY, DAVID A, WLODARCZYK, ANTHONY, EDDINGTON, RYAN, HUNGERFORD, DOUGLAS, LANGE, DIDIER
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BUREAU ACCESSORIES IMPLEMENTS FOR WRITING OR DRAWING PERFORMING OPERATIONS TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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