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Class Information
Number: 30/460
Name: Cutlery > Static pencil sharpener > Having conical or cylindrical work guide > Open-ended for point protection during writing
Description: Device having an opening through the end thereof opposite and aligned with the entrance portion of the guide, which opening is large enough to permit the protrusion therethrough of only a reduced working end of the workpiece so as to permit retention of the device on the workpiece during, and without interference with, the marking operation.

Patents under this class:

Patent Number Title Of Patent Date Issued
4934057 Multi-blade pencil-core sharpener Jun. 19, 1990
4755074 Pencil sharpener Jul. 5, 1988

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