Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/338
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 places end of flexible lead, or means connected thereto (e.g., plug, etc.), in contact with another element
Description: Subject matter wherein an elongated electrical conductor (e.g., wire, etc.), or something attached thereto, such as a probe, is manually placed in contact with another element associated with an answer choice to thereby complete an electric circuit.










Patents under this class:

Patent Number Title Of Patent Date Issued
5611691 Modular construction kit using electronic control modules Mar. 18, 1997
5326269 Scramble-circuited quiz-module w/overlaying Q&A-sheets Jul. 5, 1994
4868374 Self-contained detector device for checking information recorded on a carrier Sep. 19, 1989
4829431 Method and apparatus for correlating test information May. 9, 1989
4773860 Multiple aptitude testing device with data terminal input Sep. 27, 1988
4609359 Educational game Sep. 2, 1986
4604065 Teaching or amusement apparatus Aug. 5, 1986
4561851 Apparatus for demonstrating and/or teaching alleviation of pain with transcutaneous electrical nerve stimulators Dec. 31, 1985
4541806 Multiple aptitude testing device Sep. 17, 1985
4525148 Multi-modal educational and entertainment system Jun. 25, 1985
4518361 Method and apparatus for effecting and evaluating action upon visual imaging May. 21, 1985
4514176 Automatic teaching apparatus and method Apr. 30, 1985
4453920 Instructional apparatus with multiple types of feedback Jun. 12, 1984
4280809 Educational toy Jul. 28, 1981
4259788 Testing apparatus Apr. 7, 1981
4254562 Combination cardiovascular electronic display/teaching apparatus, system and methods of constructing and utilizing same Mar. 10, 1981
4205463 Electronic teaching aid Jun. 3, 1980
4166325 Didactic apparatus including handheld responsor means Sep. 4, 1979
4135313 Educational toy with action Jan. 23, 1979
4121354 Animated learning aid Oct. 24, 1978
4083120 Electronic device for use as a teaching aid Apr. 11, 1978
4060915 Mental image enhancement apparatus utilizing computer systems Dec. 6, 1977
4052798 Audio-visual teaching system Oct. 11, 1977
4010553 Portable quiz responsive and display device Mar. 8, 1977
3964177 Reinforcing teaching system Jun. 22, 1976
3955290 Learning devices May. 11, 1976
3949489 Psychological teaching apparatus Apr. 13, 1976











 
 
  Recently Added Patents
Verification of a portable consumer device in an offline environment
Memory device having collaborative filtering to reduce noise
Caprazene as a novel compound and derivatives thereof, and caprazol as a novel compound and derivatives thereof
Antisense modulation of C-reactive protein expression
Bit error mitigation
Evaluation compiler method
Haworthia plant named `CAPETOWN`
  Randomly Featured Patents
Friction heat developer
Magnetic recording medium and magnetic recording/reproducing apparatus
Process for preparing calcium aluminate from aluminum dross
Methods for using glucose pentasulfate for treating amyloid associated with type II diabetes
Semiconductor device having landing pad and fabrication method thereof
A tracking circuit for returning an optical beam to a track being scanned on a compact disk after being jarred away
Poly(oxyalkylene) modified phthalocyanine colorants
Magnetic recording/reproduction apparatus including a first chassis onto which a tape cassette is received and a second chassis having a rotary head cylinder thereon
Memory circuit and voltage detection circuit including the same
Compact and self-contained adjustable sight assembly