| Patents for G09B 11 - Teaching hand-writing, shorthand, drawing, or painting (2,187) |
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| 09/21/1993 | CA2090446A1 Drawing aid |
| 09/15/1993 | CN2142076Y Calligraphy models with adhesive film |
| 08/25/1993 | EP0556530A1 Technique of manufacturing sheets upon which letters, words, numbers or drawings are printed and deeply indented and a handwriting and drawing learning method |
| 08/10/1993 | US5234344 Book package |
| 07/20/1993 | US5228858 Children's pad printing kit |
| 07/14/1993 | CN2138045Y Transparent box for depiction |
| 07/08/1993 | WO1993013511A1 Process and display with moveable images |
| 06/08/1993 | US5217378 Painting kit for the visually impaired |
| 06/08/1993 | US5217376 Drawing aid |
| 05/25/1993 | US5213504 Kit for toys with felt tipped markers |
| 05/11/1993 | US5209663 Craft paint system for forming fine designs |
| 05/05/1993 | CN2131707Y Teaching compass |
| 04/20/1993 | US5203702 Writing board kit having light-sensitive self-illuminating drawing surface |
| 03/30/1993 | US5197886 Process and display with moveable images |
| 03/23/1993 | US5195893 Shape retaining stencil for three dimensional image placement |
| 01/27/1993 | CN1068439A Combined character |
| 12/30/1992 | CN2126160U Transparent copying board for practising calligraphy |
| 12/30/1992 | CN1067407A Exercise card for writing training with hard-nib pen |
| 12/16/1992 | CN1019465B Magnetic tracing board with music flasher |
| 12/15/1992 | US5171614 Method of forming and using sculptable article |
| 11/17/1992 | US5163846 Toy using water reactive paper |
| 11/12/1992 | DE4115237A1 Method for treatment of children with reading and writing difficulties - has optical, acoustic and speech suggestive components promoting proceeding from left to right |
| 11/10/1992 | US5161979 Process and display with moveable images |
| 09/08/1992 | US5145377 Color-coded training method |
| 09/01/1992 | US5143463 Writing aid |
| 08/25/1992 | US5141438 Art craft kit |
| 08/19/1992 | CN2113182U Perspective viewfinder |
| 08/12/1992 | CN1063452A Applications and producing method of pressmoulding copybook |
| 07/29/1992 | CN1063077A Painting tool |
| 05/20/1992 | CN2105108U Colour mixing display |
| 05/06/1992 | CN2103459U Copybook with characters cut in intaglio |
| 05/05/1992 | US5110295 Educational tracing device |
| 04/23/1992 | DE4033191A1 Method of providing exercises in handwriting - by first writing letters in brightly coloured ink and then going over them in lighter coloured ink |
| 04/22/1992 | CN1060420A Standardized writing method for digital code of script |
| 04/21/1992 | US5106305 Picture making kit |
| 04/15/1992 | CN2101395U Multifunctional stationery box with depicting word and picture function |
| 04/15/1992 | CN1016242B Ellipsograph |
| 04/10/1992 | CA2037599A1 Color-coded training method |
| 04/08/1992 | CN2100790U Projection character lattice for writing desk |
| 03/31/1992 | US5100330 Process and display with moveable images |
| 03/31/1992 | US5100325 Apparatus and method for creating perspective drawings |
| 03/31/1992 | US5100324 Pre-school stencil kit |
| 03/25/1992 | EP0476809A2 Graphic image processing apparatus |
| 03/24/1992 | US5098302 Process and display with movable images |
| 03/19/1992 | WO1992004701A1 Visual imaging construction system |
| 03/04/1992 | CN2097757U Writing brush calligraphy copying slice |
| 01/29/1992 | CN2094446U Trace excercise book for primary school pupil to study new words |
| 01/14/1992 | US5080590 Learning aid book |
| 11/20/1991 | CN2089192U Multipurpose types of facial makeup in operas combined toy and teaching aid |
| 11/20/1991 | CN2088940U Multifunction writing practising device for pupil |
| 11/06/1991 | EP0455147A1 Coordinate information input apparatus |
| 10/17/1991 | WO1991015840A1 An educational aid |
| 10/09/1991 | EP0450034A1 Three-dimensional drawing device |
| 10/02/1991 | CN2085986U Multifunctional copybook |
| 09/11/1991 | CN2084631U Tracing toy for hard pen writing |
| 08/28/1991 | CN2083775U Locus writing card |
| 08/28/1991 | CN1054036A Magnetic tracing board with music flasher |
| 08/20/1991 | US5040986 Educational device for teaching handwriting skills |
| 08/13/1991 | US5038482 Three-dimensional drawing device |
| 07/24/1991 | CN2081348U Teaching aid compasses fulcrum antiskid unit |
| 07/02/1991 | US5027523 Learning device for aiding a person in forming alphanumeric combinations |
| 05/08/1991 | CN2076495U Combined pointer and compasses for teacher |
| 04/23/1991 | US5009599 Sculpture apparatus |
| 04/17/1991 | CN2075368U Block printe model for exercising standard calligraahy |
| 04/12/1991 | WO1991005669A1 Three-dimensional drawing device |
| 04/03/1991 | CN2074247U Serial quick drawing instrument |
| 03/27/1991 | CN2073819U Adjustable color and figure writing plate |
| 03/19/1991 | US5000688 Magnetic stencil letters |
| 03/06/1991 | CN2072483U Directional sliding set square |
| 03/06/1991 | CN2072481U Hand control intelligence drawing board |
| 03/06/1991 | CN2072421U Children drawing picture-piece boards |
| 10/31/1990 | EP0394335A1 Picture making kit. |
| 10/02/1990 | US4960382 Educational writing board kit |
| 09/18/1990 | US4957558 Temporary solidifier for playing with sand |
| 09/18/1990 | US4957442 Apparatus and method for assisting a disabled person to hand write with a writing instrument |
| 07/10/1990 | CA1271444A1 Writing aid |
| 04/18/1990 | CN1007666B Magnetic blackboard |
| 04/04/1990 | CN2055622U Three-image auto-turning display device |
| 04/04/1990 | CN2055448U Intelligence training chest for children |
| 03/27/1990 | US4911642 Color wheel palette |
| 01/24/1990 | CN2051572U Ellipsograph for teaching |
| 01/02/1990 | US4891266 Dry, three-dimensional solid; particles with alkyd paint |
| 12/20/1989 | EP0347182A2 Coloring articles |
| 11/29/1989 | CN2048429U Ellipse compass for teaching |
| 11/23/1989 | EP0188457B1 Educational game for stimulating the writing |
| 10/11/1989 | CN2045874U Constant temperature working table |
| 09/20/1989 | CN2044753U Disk for mixing colours and recognizing relationship between colours |
| 09/19/1989 | US4867684 Organizer-keyboard |
| 09/12/1989 | US4865547 Sketching device |
| 08/29/1989 | CA1258770A1 Instructional printing equipment |
| 08/16/1989 | CN2042990U Painting and calligraphy projector for child tracing |
| 08/02/1989 | CN2042225U Character imitating exercise device |
| 07/27/1989 | WO1989006603A1 Picture making kit |
| 07/11/1989 | US4846710 Apparatus for aiding in learning correct penmanship |
| 07/11/1989 | US4846688 Educational device for use in teaching writing skills |
| 06/21/1989 | CN2039628U Hand or power operated blackboard without dust |
| 06/14/1989 | CN2039266U 黑板 Blackboard |
| 06/06/1989 | US4836783 Activity kit |
| 06/06/1989 | US4836381 Patterned art apparatus and method |
| 05/31/1989 | CN1033171A 黑板 Blackboard |