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Class Information
Number: 106/31.12
Name: Compositions: coating or plastic > Coating or plastic compositions > Marking > Pencil leads > Wax containing
Description: Coating or plastic compositions containing wax.

Patents under this class:

Patent Number Title Of Patent Date Issued
8529639 Liquid dye formulations in non-petroleum based solvent systems Sep. 10, 2013
7842102 Liquid dye formulations in non-petroleum based solvent systems Nov. 30, 2010
7291210 Solid drawing material and method for producing the same Nov. 6, 2007
6875261 Unburned color pencil lead Apr. 5, 2005
6511533 Non-calcined lead of a colored pencil Jan. 28, 2003
6395076 Non-calcined lead of a colored pencil May. 28, 2002
6277182 Pigment-containing oil-based gel materials Aug. 21, 2001
5595700 Non-baked color pencil leads and method for preparing same Jan. 21, 1997
5407472 Solid drawing composition Apr. 18, 1995
5318622 Non-baked color pencil leads and method for preparing same Jun. 7, 1994
4229334 Plastic modified writing compositions Oct. 21, 1980
4209332 Method for manufacturing pencil leads Jun. 24, 1980
3976488 Treating agent for diazo-type multicolor reproduction Aug. 24, 1976

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