Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/161
Name: Education and demonstration > Language > Alphabet letter formation, recognition, or sequencing > Letter displayed upon manipulation of mechanism
Description: Subject matter wherein some mechanism, such as a key having an alphabet letter associated therewith is manipulated (e.g., depressed) and as a result, a letter-bearing member is brought into viewable position.










Patents under this class:

Patent Number Title Of Patent Date Issued
8672682 Conversion of alphabetic words into a plurality of independent spellings Mar. 18, 2014
8297979 Electronic learning device with a graphic user interface for interactive writing Oct. 30, 2012
8251701 Interactive language apparatus Aug. 28, 2012
7901211 Method of treating autism using brain jogging system Mar. 8, 2011
7321360 Systems, methods and devices for efficient communication utilizing a reduced number of selectable inputs Jan. 22, 2008
6755656 Method and apparatus for adaptive handwriting teaching system Jun. 29, 2004
6215901 Pen based computer handwriting instruction Apr. 10, 2001
5114349 Element for a didactic play, and a set formed by such elements May. 19, 1992
5006000 Educational aid with substitutable magnetic items Apr. 9, 1991
4262432 Study device Apr. 21, 1981











 
 
  Recently Added Patents
Prevention and treatment of osteoarthritis
System and method for optimizing use of plug-in air conditioners and portable heaters
Lifting apparatus
Business flow processing method and apparatus
Semiconductor device and method of manufacturing the same
Personalized location information for mobile devices
Sub-LUN input/output profiling for SSD devices
  Randomly Featured Patents
Method and apparatus for enhancing a wagering experience using a wagering terminal adaptable to a self-service mode
Array substrate, display panel having the same and method of manufacturing the same
Synchronization in a communications system with multicarrier telephony transport
Scissors
Instrument and method for measuring pluck resistance of fastener members
5-halo-tryptamine derivatives used as ligands on the 5-HT.sub.6 and/or 5-HT.sub.7 serotonin receptors
Olefin process with removal of aromatic by-products
Sleeper bed for trucks
Concrete wetting alarm system
Digital surveillance