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Class Information
Number: 434/213
Name: Education and demonstration > Mathematics > Geometry, trigonometry, or physical mathematic model structure > Property of sphere or spheroid
Description: Subject matter relating to characteristics of a globular body or an ellipsoid of revolution.

Patents under this class:

Patent Number Title Of Patent Date Issued
8509932 Methods, systems and accessories useful for procedures relating to dental implants Aug. 13, 2013
6872078 Teaching cylinder instrument Mar. 29, 2005
6787378 Method for measuring height of sphere or hemisphere Sep. 7, 2004
6213779 Conic section activity boards Apr. 10, 2001
5236196 Spherical body formed of polygonal members Aug. 17, 1993

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