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Class Information
Number: 434/314
Name: Education and demonstration > Audio recording and visual means > Image projector
Description: Subject matter wherein the visual information is projected by optical means from an image carrier onto a viewing screen.










Sub-classes under this class:

Class Number Class Name Patents
434/316 With code on audio carrier for controlling operation of apparatus 18
434/315 With code on image carrier for controlling operation of apparatus 10


Patents under this class:

Patent Number Title Of Patent Date Issued
8652072 Kinematic system Feb. 18, 2014
8539560 Content protection using automatically selectable display surfaces Sep. 17, 2013
8525784 Input device for use with a display system Sep. 3, 2013
7441905 Optical scanner Oct. 28, 2008
7270420 Optical scanner Sep. 18, 2007
5541680 Slide projector assembly Jul. 30, 1996
5067287 Display wall assembly Nov. 26, 1991
4959734 Prestored response processing system for branching control of interactive video disc systems Sep. 25, 1990
4710130 Dichotic-diotic paired-association for learning of verbal materials Dec. 1, 1987
4470675 Random access control apparatus and method for slide projector Sep. 11, 1984
4468204 Process of human-machine interactive educational instruction using voice response verification Aug. 28, 1984
4165570 Pedestrian street and road crossing trainer and method Aug. 28, 1979
4092785 Teaching and display apparatus Jun. 6, 1978
4075668 Digital logic control for audio visual programs and method therefor Feb. 21, 1978
4046437 Combination cabinet for audio-visual teaching Sep. 6, 1977
4026040 Educational device for learning about inductors May. 31, 1977
4026039 Educational device for learning basic measurements May. 31, 1977
4009524 Educational device for learning fundamentals of engine operation Mar. 1, 1977
4006538 Educational device for learning switching Feb. 8, 1977
4006537 Educational device for learning rotary engine fundamentals Feb. 8, 1977
4004353 Educational device for learning automotive trouble-shooting Jan. 25, 1977
4003140 Educational device for learning engine fuel, lubrication and cooling systems Jan. 18, 1977
3999307 Teaching machine Dec. 28, 1976
3991489 Educational device for learning the fundamentals of an automotive carburetor system Nov. 16, 1976
3991488 Educational device for learning principles of standard transmission Nov. 16, 1976
3990157 Educational device for learning the fundamentals of a diesel engine and fuel injector system Nov. 9, 1976
3990158 Educational device for learning the fundamentals of automotive fuel system Nov. 9, 1976
3987557 Educational device for learning the fundamentals of an automotive drum brake system Oct. 26, 1976
3986278 Educational device for learning transmission drive shaft, and axle operation Oct. 19, 1976
3986277 Educational device for learning disc brake fundamentals Oct. 19, 1976
3986276 Educational device for learning suspension system fundamentals Oct. 19, 1976
3932948 Audio-visual learning system Jan. 20, 1976











 
 
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