Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/190
Name: Education and demonstration > Mathematics > Magnet included in teaching means
Description: Subject matter including a magnet.










Patents under this class:

Patent Number Title Of Patent Date Issued
8287280 Teaching aid device and method of teaching Oct. 16, 2012
7862882 Re-positionable magnetic art apparatus Jan. 4, 2011
7500852 Teaching aid device and method of teaching Mar. 10, 2009
7296999 Educational display mitt for magnetic playing pieces and method Nov. 20, 2007
7273375 Teaching aid device and method of teaching Sep. 25, 2007
6793251 Binder with magnetically retained pages Sep. 21, 2004
5949050 Magnetic cards having a layer being permanently magnetized in a fixed configuration Sep. 7, 1999
5933329 Board for mounting display element Aug. 3, 1999
5820383 Magnetic manipulatives book Oct. 13, 1998
5809675 Board for mounting display element Sep. 22, 1998
5707238 Number and math education system Jan. 13, 1998
4865324 Magnetic wheel puzzle Sep. 12, 1989
4846689 Magnetic educational aid and teaching method Jul. 11, 1989
4838793 Activity display article with removable manipulatives Jun. 13, 1989
4377384 Three-dimensional teaching device Mar. 22, 1983
4366637 Set of advertising components Jan. 4, 1983
4295832 Educational toy Oct. 20, 1981











 
 
  Recently Added Patents
Cineole
System and method for detecting states
Method and system for electronic assistance in dispensing pharmaceuticals
System and method for a TCP mapper
Optoelectronic devices and a method for producing the same
Epitaxial substrate for electronic device, in which current flows in lateral direction and method of producing the same
In-vehicle communication system and method of operation
  Randomly Featured Patents
Apparatus for measuring capacitance of a semiconductor device
Needle protector
Tilting flask
Arrangement for processing a web a folded product from a rotary roller press and a rotary roller press
Fluorocarbon coating method
Magically appearing striped dentifrice
Method and apparatus for fast searching of hand-held contacts lists
Cable termination device with a clamped retention member
Optical elements made from ceramics comprising one or more oxides of Y, Sc, in and/or lanthanide elements and mapping optics including the optical elements
Golf club head cover