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Class Information
Number: 434/339
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 > Part of electric circuit completed when examinee depresses portion of sheet having electric conductor associated therewith
Description: Subject matter arranged so that when an examinee depresses a sheet at a correct answer location thereon an electric circuit is completed.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6241527 |
Interactive educational display board |
Jun. 5, 2001 |
| 5356296 |
Audio storybook |
Oct. 18, 1994 |
| 5330358 |
Computerized educational and entertainment device |
Jul. 19, 1994 |
| 5188533 |
Speech synthesizing indicia for interactive learning |
Feb. 23, 1993 |
| 5088928 |
Educational/board game apparatus |
Feb. 18, 1992 |
| 5087043 |
Interactive audio-visual puzzle |
Feb. 11, 1992 |
| 4990092 |
Talking book |
Feb. 5, 1991 |
| 4854879 |
Self-teaching book for children with an electronic device |
Aug. 8, 1989 |
| 4818827 |
Low force membrane switch |
Apr. 4, 1989 |
| 4664634 |
Electric self-teaching apparatus utilizing printed and auditory means |
May. 12, 1987 |
| 4576579 |
Instructional and testing apparatus with switch closure at two different depths |
Mar. 18, 1986 |
| 4561852 |
Computer assisted teaching machine that uses two electroresistive sheets |
Dec. 31, 1985 |
| 4557694 |
Teaching device and method of using same |
Dec. 10, 1985 |
| 4522599 |
Computer assisted instructional and testing apparatus with switch closure at two different depths |
Jun. 11, 1985 |
| 4521199 |
Computer assisted teaching machine that uses two sets of conductive strips |
Jun. 4, 1985 |
| 4445867 |
Educational board game |
May. 1, 1984 |
| 4432733 |
Amusement and educational game |
Feb. 21, 1984 |
| 4425099 |
Educational aid for use with workbook |
Jan. 10, 1984 |
| 4403965 |
Electronic teaching apparatus |
Sep. 13, 1983 |
| 4377049 |
Capacitive switching panel |
Mar. 22, 1983 |
| 4343474 |
Multiple game device |
Aug. 10, 1982 |
| 4310318 |
Electronic game |
Jan. 12, 1982 |
| 4228597 |
Teaching device |
Oct. 21, 1980 |
| 4073068 |
Teaching light |
Feb. 14, 1978 |
| 3947978 |
Educational learning device |
Apr. 6, 1976 |
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