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Class Information
Number: 434/319
Name: Education and demonstration > Audio recording
Description: Subject matter wherein instruction is reproduced from an audio carrier such as a magnetic tape or a phonograph record.


Sub-classes under this class:

Class Number Class Name Patents
434/320 Listener's voiced response recorded 27
434/321 Operation of apparatus controlled by listener's response to question or problem 46


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
5180307 Learning apparatus Jan. 19, 1993
5106097 Audio quiz game Apr. 21, 1992
5083924 Tactile enhancement method for progressively optimized reading Jan. 28, 1992
5061186 Voice-training apparatus Oct. 29, 1991
5061185 Tactile enhancement method for progressively optimized reading Oct. 29, 1991
5033968 Method and apparatus for safely and intelligibly directing sound to a fetus Jul. 23, 1991
5011156 Board game apparatus Apr. 30, 1991
4932880 Low-cost sound related trainer Jun. 12, 1990
4923428 Interactive talking toy May. 8, 1990
4830007 Fetus learning system May. 16, 1989
4824375 Sound-producing amusement or eductional apparatus Apr. 25, 1989
4820165 Method and kit for learning science as a language Apr. 11, 1989
4804328 Interactive audio-visual teaching method and device Feb. 14, 1989
4798539 Prenatal learning device and method Jan. 17, 1989
4777529 Auditory subliminal programming system Oct. 11, 1988
4759720 Apparatus for learning by the super-learning method Jul. 26, 1988
4759067 Acoustic regenerator Jul. 19, 1988
4710130 Dichotic-diotic paired-association for learning of verbal materials Dec. 1, 1987
4690645 Interactive educational device Sep. 1, 1987
4591929 Interactive learning programming and like control circuitry May. 27, 1986
4569465 Stereo sport belt Feb. 11, 1986
4541805 Audio adapter for sewing machine Sep. 17, 1985
D278761 Waterproof belt container for portable radio or tape player May. 14, 1985
4354841 Prerecorded instructional material and method of instruction Oct. 19, 1982
4321633 Tape recorder Mar. 23, 1982
4310315 Tactile learning device for the handicapped Jan. 12, 1982
4310317 Educational apparatus with automatic terminal identification Jan. 12, 1982
4189852 Method of teaching reading Feb. 26, 1980
4172329 Multi-function tape recorder having automatic timing and signalling system for training purpose Oct. 30, 1979
4117605 Real time conversational toy having secure playback response Oct. 3, 1978
4078315 Prerecorded tape recording and branched method of instructing using same Mar. 14, 1978
4078316 Real time conversational toy Mar. 14, 1978
4063370 Tape cassettes having indications for blind use Dec. 20, 1977
4035930 Time selective information dissemination system for use in sleep teaching Jul. 19, 1977
4010557 Music laboratory Mar. 8, 1977
4000518 Signal detection during variable speed tape movements Dec. 28, 1976
3971141 Method for interactive communications Jul. 27, 1976
3960254 Audio information device Jun. 1, 1976
3955466 Performance learning system May. 11, 1976
3942268 Methods and apparatus for interactive communications Mar. 9, 1976

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