| Patents for G09B 1 - Manually- or mechanically-operated educational appliances using elements forming or bearing symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways (2,411) |
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| 02/19/1992 | CN1058857A Combined colour layout material |
| 02/12/1992 | CN2096095U Chinese character magic wheel |
| 02/11/1992 | US5087203 Educational tool kit |
| 01/22/1992 | CN2094086U Disc-type teaching card |
| 01/15/1992 | CN2093424U 多功能教学板 Multifunction teaching board |
| 12/31/1991 | US5076793 Fractal mathematics kit |
| 12/24/1991 | US5074794 Sequencing puzzle |
| 12/10/1991 | US5071355 Demonstration device |
| 12/03/1991 | US5069623 Educational play structure |
| 11/19/1991 | US5066234 Educational toy and method therefor |
| 11/13/1991 | CN2088714U Children teaching split active figure board |
| 11/06/1991 | CN2088273U Cross-sliding device for making up the chinese phonetic alphabets into major chinese characters |
| 10/25/1991 | CA2039659A1 Alphabet teaching and learning game and method thereof |
| 10/15/1991 | US5056792 Business education model |
| 10/09/1991 | CN2086437U Child intelligence wood-piecing board |
| 10/02/1991 | CN1054908A Assembling puzzle toy for electronic skill training |
| 10/01/1991 | US5052616 Coin receiving incentive device |
| 08/27/1991 | US5042157 Fiber optic angular orientation sensor digital serial encoding |
| 08/21/1991 | EP0442217A1 Hexagonal pad |
| 08/21/1991 | CN1053897A Phonetic alphabet building blocks |
| 08/20/1991 | US5040987 Educational aid for word and numeral recognition |
| 08/15/1991 | CA2033225A1 Hexagonal pad |
| 07/24/1991 | CA2034667A1 Educational aid with substitutable magnetic items |
| 07/03/1991 | CN2080197U Magnetic rubber thin sheet split picture toy and teaching tool |
| 07/02/1991 | US5027523 Learning device for aiding a person in forming alphanumeric combinations |
| 06/25/1991 | US5026288 Illuminated educational blocks |
| 06/05/1991 | CN2078469U Magnetic focusing model |
| 06/01/1991 | CA2004348A1 Set of components for producing representations of different three-dimensional bodies, said representations having a three-dimensional effect |
| 05/29/1991 | EP0429113A1 Element for didactic game and assembly constituted by such elements |
| 05/07/1991 | US5013245 Information shapes |
| 04/30/1991 | US5011411 Method of making a non-repetitive modular design |
| 04/30/1991 | US5011186 Hexagonal pad |
| 04/24/1991 | EP0424352A2 Educational game |
| 04/23/1991 | US5009599 Sculpture apparatus |
| 04/09/1991 | US5006000 Educational aid with substitutable magnetic items |
| 03/12/1991 | US4998883 Educational toy |
| 02/19/1991 | US4993952 Arithmetic counter |
| 01/22/1991 | US4986789 Shape identification toy vehicle assembly |
| 01/17/1991 | DE3922048A1 Teaching reading and spelling - involves set of flat panels connected along their edges by flexible hinges |
| 01/09/1991 | CN2069143U Copy board for piecing basic strokes of chinese characters |
| 01/02/1991 | EP0405027A1 Educational children's toy |
| 12/26/1990 | CN2068261U Multi-functional magnetic force teaching aid board |
| 12/18/1990 | US4978301 Educational construction set |
| 10/31/1990 | EP0394304A1 Demonstration appliance. |
| 10/09/1990 | US4961708 Educational puzzle |
| 10/03/1990 | CN2063262U Character-spliting disc |
| 09/18/1990 | US4957443 Educational card game system |
| 08/28/1990 | US4952153 Surface mounted magnetic toy |
| 08/22/1990 | CN2060923U Model demonstrating apparatus |
| 08/21/1990 | US4950167 Visual detail perception test kit and methods of use |
| 08/21/1990 | US4950165 Educational toy blocks |
| 08/16/1990 | EP0382410A2 Memory aid |
| 08/16/1990 | EP0382369A2 Business education model |
| 08/15/1990 | CN2060579U Chinese phonetic alphabet and word-spelling board |
| 08/08/1990 | CN1044545A Playing card with various languages and figures on it |
| 07/18/1990 | CN2059524U Comprehensive magnetic teaching aid for mathematics education in primary school |
| 07/12/1990 | DE3900377A1 Adaptable film display system for schools, training and further education, particularly for group work |
| 07/11/1990 | CN2059260U Multi-purpose teaching tool and board for mathematics |
| 07/05/1990 | DE3844107A1 Teaching aid as an allocation game with mechanical solution verification, in three parts, for demonstration, individual elaboration, and visual instruction purposes |
| 06/27/1990 | CN2058776U Magnetic teaching and for teaching of the chinese phonetic |
| 06/26/1990 | US4937181 Educational display system |
| 06/12/1990 | US4932878 System of illuminable modules for composing alphanumerics and decorative patterns |
| 06/06/1990 | EP0371815A1 Indicator |
| 05/01/1990 | US4920675 Advertisement tool |
| 04/24/1990 | US4920033 Rotatable disk teaching apparatus |
| 04/24/1990 | US4919618 Game board with player figures for teaching team sports |
| 04/19/1990 | WO1990004243A1 Mathematical aid |
| 04/18/1990 | CN2056268U Magnetic toy bricks for multinomial elementary children's education |
| 04/10/1990 | US4915634 Visual and manipulative teaching aid for mathematics |
| 04/10/1990 | US4915633 Toy alphabet school bus |
| 04/03/1990 | US4914019 Multi-purpose learning device |
| 03/21/1990 | CN2054922U Multi-purpose combination teaching aid board for spelling and musical composition |
| 02/20/1990 | US4902230 Rotational educational apparatus |
| 01/17/1990 | CN2051374U Multipurpose teaching demonstrater for children |
| 01/17/1990 | CN2051373U Multifunction magnetic intelligence board |
| 01/10/1990 | CN2050994U Plastics building blocks for quick teaching chinese characters |
| 01/09/1990 | US4892484 Educational toy |
| 12/27/1989 | EP0136294B1 Perpetual calendar |
| 12/05/1989 | US4884973 Mathematic teaching aid |
| 11/15/1989 | CN1037227A Set or game for the composition of figures shapes and patterns |
| 11/07/1989 | US4878845 Device for encouraging children to brush their teeth regularly |
| 10/31/1989 | US4877405 System of modules for composing alphanumerics |
| 09/26/1989 | US4869701 Electrical educational toy |
| 09/20/1989 | EP0333428A1 Cylindrical device |
| 07/19/1989 | CN1034081A Teaching tools for classified literals and learning therefor |
| 07/12/1989 | CN2041059U Fire extinguishing tactics drill board |
| 07/11/1989 | US4846692 Educational children's toy |
| 07/11/1989 | US4846689 Magnetic educational aid and teaching method |
| 07/11/1989 | US4846687 Sign language blocks |
| 06/28/1989 | CN2040268U Hand-demonstrated letter board for teaching |
| 06/15/1989 | WO1989005178A1 Demonstration appliance |
| 06/13/1989 | US4838794 Metric block toy |
| 06/13/1989 | US4838793 Activity display article with removable manipulatives |
| 05/30/1989 | US4834657 Punishment wheel |
| 05/23/1989 | US4832605 Teaching and demonstration system |
| 05/16/1989 | US4830619 Table setting display guide |
| 05/09/1989 | US4828498 Food exchanges kit, and methods of constructing and utilizing same |
| 05/03/1989 | CN2037094U Magnetically combined colour teaching board |
| 04/18/1989 | US4822283 Semantic mapping device for teaching language skills |
| 02/28/1989 | US4808111 Mathematics educating device |