DEVICE FOR SHARPENING PENCIL SLATES Russian patent published in 1998 - IPC

Abstract RU 2120859 C1

FIELD: drawing and writing accessories. SUBSTANCE: device has case with funnel-shaped upper part on gentle slopes which abrasive surface is positioned on inner side. Slotted hole with beading over external contour is made in central part of funnel. Lower part of case is detachable and is made as a tray. EFFECT: improved construction, enhanced convenience in use. 2 dwg

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RU 2 120 859 C1

Authors

Moshkonov V.V.

Dates

1998-10-27Published

1996-04-25Filed