Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/344
Name: Education and demonstration > Question or problem eliciting response > Correctness of response indicated to examine by self-operating or examinee actuated means > By means including electrical component > Correct answer illuminated
Description: Subject matter wherein the correct answer to a question or problem is present on a carrier surface but is not visible to an examinee until the correct response is selected, at which time the correct answer is illuminated and revealed.










Patents under this class:

Patent Number Title Of Patent Date Issued
6632096 Method and apparatus for teaching and learning Oct. 14, 2003
4824376 Educational device Apr. 25, 1989
4731027 Educational teaching toy Mar. 15, 1988
4228596 Illuminated teaching device and board game Oct. 21, 1980
4085523 Teaching machine Apr. 25, 1978
4051608 Teaching machine Oct. 4, 1977
4001948 Light response teaching system Jan. 11, 1977
3977092 Teaching machine card Aug. 31, 1976
3974575 Teaching machine Aug. 17, 1976











 
 
  Recently Added Patents
Image scanning apparatus and image forming apparatus
Tools and methods for yield-aware semiconductor manufacturing process target generation
Secure service for enabling communication for calling party when communication service for called party is suspended
Method and apparatus for band switching in wireless local access network
Methods and devices for enforcing network access control utilizing secure packet tagging
Thwarting keyloggers using proxies
Apparatus for merging spatial audio streams
  Randomly Featured Patents
Information gathering system using multi-radio telematics devices
Discontinuous high-modulus fiber metal matrix composite for thermal management applications
Gas laser having two longitudinal modes of laser oscillation
Power head of power cutter
Sink organizer
Filter-box for a spin dryer
Clock provided with function of raising alarm at more than one time and alarming method
Apparatus for controlling humidity in a disk drive
Magnetic memory device and method of magnetization reversal of the magnetization of at least one magnetic memory element
Electronic lock box with mechanism immobilizer features