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Class Information
Number: 30/452
Name: Cutlery > Static pencil sharpener > Plural, sequentially engaged cutters
Description: Device including a plurality of successively employed cutters adapted to perform a plurality of shaping operations on a workpiece.

Patents under this class:

Patent Number Title Of Patent Date Issued
8016004 More silent and robust electric pencil sharpener Sep. 13, 2011
7654179 Crayon sharpener Feb. 2, 2010
7363714 Pencil sharpener Apr. 29, 2008
6948251 Pivoting sharpening device for pencil with non-circular cross section Sep. 27, 2005
6883697 Office tool assembly Apr. 26, 2005
6725549 Sliding sharpening device for pencil with non-circular cross section Apr. 27, 2004
6571480 Pencil sharpener for carpenter's pencil Jun. 3, 2003
6338198 Pencil sharpener Jan. 15, 2002
6065514 Compact handheld battery-operated cosmetic pencil sharpener May. 23, 2000
5894669 Sharpener for soft core pencils Apr. 20, 1999
5875555 Crayon sharpener assembly Mar. 2, 1999
5802948 Method for sharpening crayons Sep. 8, 1998
5699620 Apparatus for sharpening crayon marking instruments to form an improved arcuate safety marking tip Dec. 23, 1997
5167071 Cosmetic pencil sharpener Dec. 1, 1992
4918816 Pencil sharpener Apr. 24, 1990
4759129 Pencil sharpener Jul. 26, 1988
4744150 Container for tape ruler with manual pencil sharpener May. 17, 1988

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