| 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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| 09/30/1993 | WO1993019444A1 Kit and method for demonstrating courtroom and trial procedure |
| 09/29/1993 | CN2142989Y Movable disk for practice of Chinese phonetic Alphabet |
| 09/19/1993 | CA2091960A1 Diet control kit |
| 09/09/1993 | DE4207115A1 Toy or learning aid with box of ferromagnetic material - which contains counters made of magnetic material on support forming part of box |
| 08/25/1993 | CN2141104Y Intelligent switch arithmetic code |
| 08/24/1993 | US5238408 Row of joined arithmetic blocks with common walls which are double end wall thickness |
| 08/24/1993 | US5238407 Blocks with mating bosses and recesses which bulge for interference fit |
| 08/20/1993 | CA2061551A1 Method of constructing flat building block modules from the union of two frustums by their congruent bases and slot connectors complement for a variety of constructive or amusing applications |
| 08/04/1993 | CN2139724Y "Baobaole" arithmetic magic disc |
| 07/28/1993 | CN2139286Y Picture and characters plastic paper strip for children and display unit thereof |
| 07/14/1993 | CN2138318Y Integrated teaching instrument for primary and high school |
| 07/14/1993 | CN1074144A Letter playing cards |
| 06/23/1993 | CN2137011Y Magic wheel for studying english root and affix |
| 06/17/1993 | DE4140767A1 Arithmetic teaching aid for primary school children - has several bars having circular holes into which cylindrical elements can be inserted, bars have between 1 and 10 holes and indicate numerical result |
| 06/16/1993 | CN2136504Y Illuminant miniature storage reader |
| 06/16/1993 | CN2136503Y Mental electronic blocks |
| 06/15/1993 | US5219289 Mathematical teaching aid |
| 06/09/1993 | CN2135813Y Composition style training selecting scale |
| 06/09/1993 | CN2135812Y 语言学习器 Language learner |
| 05/26/1993 | CN2134688Y Arithmetic disk for addition and subtraction in rang of 100 |
| 05/26/1993 | CN2134687Y Various subjects knowledge main points quick search disk for middle or primary school |
| 05/26/1993 | CN2134686Y Literary general knowledge quick indexing disk |
| 05/12/1993 | CN2132551Y Intelligence plate with numberical bricks |
| 05/05/1993 | CN2132232Y Chinese character studying aid |
| 05/05/1993 | CN2132231Y Quick check disc for geographical knowledge |
| 04/28/1993 | CN2131153Y Rotary disc with syllables of Chinese Phonetic Alphabet |
| 04/20/1993 | US5203706 Educational device |
| 04/14/1993 | CN2129955Y Word learn target |
| 04/13/1993 | US5201660 Kit and method for demonstrating courtroom and trial procedure |
| 04/08/1993 | DE4205937C1 Teaching device for self and immediate checking of answer to questions - has question form with columns for questions and selection of answers and answer and checking fields |
| 04/07/1993 | CN2129439Y Device for practising alphabet combination |
| 03/24/1993 | CN2128758Y Sum-product arithmetic squares |
| 03/04/1993 | DE4222259A1 Advertising or sales demonstration container - is in form of pyramid with concealed internal chamber for merchandise |
| 03/03/1993 | CN2127797Y 教学显示器 Teaching Monitor |
| 03/02/1993 | CA1313954C Advertisement tool |
| 02/24/1993 | CN2127510Y Chinese phonetic alphabet teaching unit |
| 02/24/1993 | CN2127509Y Chinese mathematics teaching demo unit |
| 02/23/1993 | US5188533 Speech synthesizing indicia for interactive learning |
| 02/17/1993 | CN2127196Y Multi-functional child learning aid unit |
| 02/03/1993 | EP0526090A2 Teaching kit |
| 01/05/1993 | US5176577 Rectangular blocks for teaching arithmetic have uniform size joinability and transparency |
| 01/05/1993 | US5176521 Educational apparatus with interchangeable task assigning template |
| 12/29/1992 | US5174757 Interactive sculptural composition |
| 12/23/1992 | CN2125859U Word splitting device able to fix word shape |
| 12/08/1992 | US5168677 Method of constructing flat building block modules from the union of two frustums by their congruent bases and slot connectors complement for a variety of constructive or amusing applications |
| 12/02/1992 | CN2123796U Multi-function demonstration board for teaching |
| 12/02/1992 | CN2123795U Multi-purpose magnetic display teaching aid |
| 12/02/1992 | CN1066739A Plug in tray style arithmetic building blocks with automatic judgement display |
| 12/01/1992 | US5167509 Educational puzzle |
| 12/01/1992 | US5167505 Educational aides and methods |
| 11/25/1992 | CN2123103U Calculator for preschool children |
| 11/24/1992 | US5165894 Educational book set and receptacle |
| 11/18/1992 | CN2122413U Children's calculator |
| 11/17/1992 | US5163845 Portable free-standing visual aid |
| 11/11/1992 | CN2121728U Involution formula magic cubic for enlighten intelligence |
| 11/11/1992 | CN2121727U Double-side multi-turntable mathematics studying and teaching aid |
| 11/10/1992 | US5161976 Alphabet teaching and learning game and method thereof |
| 10/27/1992 | CA1309247C Educational toy |
| 10/20/1992 | US5156548 Die having magic squares |
| 10/07/1992 | CN2118332U Studying device for mathematics |
| 10/01/1992 | DE4036620A1 Device for composition or translation of sentences - entails words or fragments of sentences composed into coherent phrases or sets |
| 09/30/1992 | CN2117640U Interesting mathematic game |
| 09/08/1992 | US5145377 Color-coded training method |
| 09/03/1992 | CA2130262A1 Apparatus for a game |
| 08/26/1992 | CN2114197U Intelligent teaching toy for children |
| 08/22/1992 | CA2036872A1 Universia |
| 08/19/1992 | CN2113528U Teaching aid for addition and subtraction operation |
| 08/18/1992 | US5139453 Shape sorting educational toy |
| 08/12/1992 | EP0394304B1 Demonstration appliance |
| 08/12/1992 | CN2112868U Insteresting children words learning scale |
| 08/11/1992 | US5137452 Base--ten blocks employing single, attachable blocks of one color row of ten blocks of different color |
| 08/05/1992 | EP0496908A1 Self-teaching, self-checking educational arrangement |
| 08/05/1992 | CN2112187U Alphabet combiner |
| 08/04/1992 | US5135401 Pictorial wardrobe planner |
| 08/04/1992 | US5135399 Diagnostic and prescriptive method for developing motivational skills |
| 07/28/1992 | US5133665 Teaching book |
| 07/15/1992 | CA2052175A1 Geography game kit |
| 06/23/1992 | US5123846 Geography game kit and method of playing |
| 06/17/1992 | CN2107687U Dialing type digital caculatig box |
| 06/10/1992 | CN2107045U Car-type maths excercising instrument for children |
| 06/09/1992 | US5120226 Toy and teaching aid combination |
| 05/20/1992 | CN2105106U Multifunctional game machine |
| 05/20/1992 | CN2105105U Magnetic splicing cards |
| 05/19/1992 | US5114349 Element for a didactic play, and a set formed by such elements |
| 05/19/1992 | US5114346 Teaching means |
| 05/06/1992 | CN2103840U Memory studying appliance |
| 04/29/1992 | CN2103173U Rotary multifunction chinese phonetic magic box |
| 04/29/1992 | CN2103172U Studying apparatus for korean |
| 04/22/1992 | CN2102549U Interesting knowledge box for child intellegent training |
| 04/16/1992 | DE4125658A1 Collapsible cube for teaching or recreation - incorporates several dice divided by diagonal cuts into two prisms |
| 04/15/1992 | CN2101916U Movable card for doing sums |
| 04/10/1992 | CA2037599A1 Color-coded training method |
| 04/08/1992 | CN2101296U Teaching and studying demonstrator capable of projection, disassembling and piecing-together |
| 04/08/1992 | CN2101295U Stationery box type key operated intellectual pieced-together chess |
| 03/25/1992 | CN2100005U Arousing intellect spelling words arithmetic toy |
| 03/24/1992 | US5098301 Multiplication facts learning aid |
| 03/11/1992 | CN2098714U Divining disk based on "the book of changes" |
| 03/03/1992 | US5092777 Alphabet teaching and learning game and method thereof |
| 03/03/1992 | US5092775 Prism prompter |
| 02/19/1992 | CN2096783U Self-check game apparatus of methematics |