Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/232
Name: Education and demonstration > Occupation > Keyboard operation (e.g., typing, key punching, etc.) > Practice keyboard having individually depressible keys > With means to display character upon depression of key
Description: Subject matter including means which will cause a character to be displayed when the key bearing the corresponding character is depressed.










Patents under this class:

Patent Number Title Of Patent Date Issued
5803744 Computer typing learning device Sep. 8, 1998
5484288 Apparatus for teaching inscription of characters Jan. 16, 1996
5478082 Apparatus for teaching or correcting the stance of a golfer Dec. 26, 1995
4693694 Toy with moving screen Sep. 15, 1987
4573928 Teaching toy Mar. 4, 1986
4492582 Teaching and entertainment device Jan. 8, 1985
4195423 Pop-up cash register Apr. 1, 1980











 
 
  Recently Added Patents
Sitagliptin intermediate compounds, preparation methods and uses thereof
Combining seismic data from sensors to attenuate noise
Electronic system and method for compensating the dimensional accuracy of a 4-axis CNC machining system using global and local offsets
Device and method for processing input data of protective relay
Indicating transfer in an IMS network
Badge or pin
Display screen or portion thereof with graphical user interface
  Randomly Featured Patents
Process for producing an antimony containing metal oxide catalyst
Line locator with accurate horizontal displacement detection
Waveguide element and method of production thereof
Ink repellent coating on charge device to improve printer runability and printhead life
Combination mop bucket and trolley
Pneumatic tire and producing method thereof
Vehicle headlight
Single sensor multi-functional dental extra-oral x-ray imaging system and method
Method of producing capsaicin analogues
Heating unit with a high emissivity, porous ceramic flame holder