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 > Patents

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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