195210 ⎘
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 comprising elements to be used without a special support to form symbols or signs by appropriate arrangement
2D AND 3D PERIODIC TABLES OF CHEMICAL ELEMENTS BASED ON THE 4D CUBIC LATTICE
#2RECONFIGURABLE PUZZLE FOR EDUCATION, THERAPY, AND ENTERTAINMENT
#3Hyper-cubic periodic table of chemical elements and compounds
#4EQUIPOTENTIAL ZONE (EPZ) GROUNDING TRAINING LAB
#5System and method for teaching piano and note reading
#6Method for inputting Chinese characters using mortise and tenon joint structures for Chinese characters formed by building members
#7Chinese character structuring member, system of mortise and tenon joint structures of Chinese characters formed by Chinese character structuring member and method for inputting Chinese characters
#8COMPLIANCE SYSTEM FOR USE WITH JANITORIAL AND CLEANING PRODUCTS
#9BLOCK TEACHING AID FOR LEARNING LANGUAGE
#10Method and apparatus for teaching power distribution
#11System and Method for Providing Recursive Feedback During and Assembly Operation
#12Teaching means for mathematics
#13Interactive educational system and method
#14Molecular modeling kit
#15METHOD FOR ENHANCING AND OPTIMIZING CREATIVE VISUALIZATION AND MEDITATION TECHNIQUES
#16REAL TIME CARD STUNT METHOD
#17INTERACTIVE BASE STATION WITH PROCESSOR AND BODIES
#18System of Bodies Which, by Mutual Communication, Detect and Then Jointly Signalize a Predetermined Concatenation, Storage Box for Such a System and Memory Suitable for Use in Such a Storage Box
#19MNEMONIC SPELLING SYSTEM
#20SYSTEM AND METHOD FOR ENCOURAGING STUDENT ATTENDANCE