| Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769) |
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| 03/25/2003 | US6536126 Writing aid |
| 03/19/2003 | EP1293457A1 Methods for calibration and automatic alignment in friction drive apparatus |
| 03/19/2003 | CN2540288Y Drawing instrument |
| 03/19/2003 | CN2540287Y Multifunctional equivalent measuring instrument |
| 03/19/2003 | CN2540286Y Angulometer |
| 03/19/2003 | CN2540285Y Multifunctional movable ruler for calligraphy for painting |
| 03/12/2003 | CN2539644Y Mapper for bindman |
| 03/05/2003 | CN2538563Y Gauge board |
| 03/05/2003 | CN2538562Y Universal gauge |
| 03/05/2003 | CN2538557Y 多功能尺 Multifunction foot |
| 02/26/2003 | CN2537561Y Multifunctional ratio drawing rule |
| 02/26/2003 | CN2537560Y Multifunctional drawing rule for pupil |
| 02/26/2003 | CN2537559Y Convenient answering card |
| 02/26/2003 | CN1398729A Multipurpose plotter |
| 02/19/2003 | CN2536415Y Measuring rulers for navigation |
| 02/19/2003 | CN2536414Y Multifunctional triangle for teaching |
| 02/12/2003 | CN2535245Y Rapid measuring-drawing ruler |
| 02/12/2003 | CN2535244Y 万能尺 Omnipotent ruler |
| 02/12/2003 | CN2535243Y Angle protractor |
| 02/06/2003 | US20030024130 Writing aid |
| 01/30/2003 | US20030020778 Ink drop detector |
| 01/29/2003 | EP1279507A1 Ink drop detector |
| 01/29/2003 | CN2533514Y Auxiliary drawing instrument structure for digital board |
| 01/29/2003 | CN2532991Y Multipurpose drawing instrument capable of drawing parallel lines |
| 01/29/2003 | CN2532990Y Multipurpose drawing instrument |
| 01/29/2003 | CN2532989Y Multifunctional teaching aids |
| 01/29/2003 | CN2532988Y Drawing instrument for teaching |
| 01/22/2003 | CN2531950Y Multi-function protractor |
| 01/22/2003 | CN2531947Y Multi-function shifting type writing brush calligraphy training board |
| 01/16/2003 | US20030009889 Method and system for recording a viewing point |
| 01/15/2003 | CN2530817Y Multifunctional angle resolver |
| 01/15/2003 | CN2530816Y Line drawing ruler on blackboard |
| 01/15/2003 | CN2530815Y Multifunctional pattern ruler |
| 01/15/2003 | CN2530814Y 规板 Regulatory board |
| 01/01/2003 | CN2528642Y Folding multifunction drawing rule |
| 01/01/2003 | CN2528641Y Multifunctional drawing measuring teaching aid |
| 01/01/2003 | CN2528640Y Symmetric limb |
| 01/01/2003 | CN2528639Y Multifunctional drawing appliance with ruler |
| 12/26/2002 | US20020196482 Dry erase printer presentation board |
| 12/25/2002 | CN2527454Y Artistic multipurpose angulometer |
| 12/25/2002 | CN2527453Y Multifunctional mapper |
| 12/11/2002 | CN2524963Y Multifunction drawing gauge |
| 12/11/2002 | CN2524962Y Multifunction stationery rule |
| 12/11/2002 | CN2524961Y Triangle special for middle school pupils |
| 12/11/2002 | CN2524960Y Multifunction marking gauge |
| 12/11/2002 | CN2524959Y Marking gauge |
| 12/11/2002 | CN2524958Y Multifunction ruler gauge |
| 12/11/2002 | CN2524957Y New triangle |
| 12/11/2002 | CN2524956Y One step multiple separation special device for arbitary angle and line segment |
| 12/11/2002 | CN2524954Y New compasses |
| 12/04/2002 | CN2523614Y 多功能圆规 Multifunction compass |
| 12/04/2002 | CN2523283Y Device against myopia |
| 12/03/2002 | US6487784 Portable drawing board for art students |
| 11/28/2002 | US20020174551 Adjustable measuring and marking device |
| 11/27/2002 | CN2522268Y Pipe bend line-drawing instrument |
| 11/27/2002 | CN2521970Y Vision protection device |
| 11/20/2002 | CN2521063Y Set-square |
| 11/20/2002 | CN2520741Y Device for holding pupils upright to correct writing posture |
| 11/06/2002 | CN2519737Y Angle drawing instrument |
| 11/06/2002 | CN2519736Y Arbitray angle divider |
| 10/30/2002 | CN2518703Y Multi-functional drawing stationery |
| 10/30/2002 | CN2518701Y Multi-functional transparent combined underlay |
| 10/24/2002 | US20020152623 Drawing board assembly having angle scale device |
| 10/09/2002 | CN2515039Y Special shaped templet for building design |
| 10/09/2002 | CN2515038Y Combined teaching-aid |
| 10/08/2002 | US6460267 Drawing template for plasmid DNA |
| 10/03/2002 | US20020139230 Cutting machine |
| 10/02/2002 | EP1245353A1 Cutting machine |
| 10/02/2002 | CN2513786Y 多功能量角器 Multifunctional protractor |
| 10/01/2002 | US6457792 Method for effecting actions over vertical surfaces |
| 09/25/2002 | CN2512623Y Letter and lattice two purpose rule |
| 09/21/2002 | CA2341809A1 Progressive stencil set and method of drawing |
| 09/12/2002 | US20020126298 Raster plotter |
| 09/12/2002 | US20020124422 Apparatus and method for creating a drawing of a three-dimensional object manually and /or electronically by viewing the object through a transparent window pane and tracing the object on the transparent window pane |
| 09/11/2002 | CN2510311Y Multifunctional teaching and learning aid |
| 09/11/2002 | CN2510310Y Real motion orbit structure for related celestial bodies |
| 09/05/2002 | DE10110209A1 Planning template for lightening protection for buildings etc has lineal and angular degree divisions and arcs with accurate scale and scale legend |
| 09/04/2002 | CN2508984Y Portable angle instrument |
| 08/28/2002 | CN2507663Y Multipurpose slip triangle for teaching |
| 08/22/2002 | WO2002064381A2 Drawing and painting system |
| 08/21/2002 | CN2506454Y Holder for writing-exercising pen |
| 08/21/2002 | CN2506453Y Improved multi-function compasses |
| 08/21/2002 | CN1364701A On-spot sampling ruler for pipe joint |
| 08/07/2002 | CN2504090Y Map address counter bar |
| 08/01/2002 | US20020100180 Template for use in construction industry |
| 07/31/2002 | CN2502913Y Drawing ruler with ball |
| 07/30/2002 | US6425185 Machine for reproducing writing |
| 07/24/2002 | CN1088222C Figure coordinate marking apparatus |
| 07/17/2002 | CN2500498Y Multifunctional lattice ruler |
| 07/17/2002 | CN2500497Y Combined drawing ruler |
| 07/17/2002 | CN1358631A Multi-functional drawing rule for teaching |
| 07/16/2002 | US6418635 Page maker template |
| 07/16/2002 | US6418631 Adjustable measuring and marking device |
| 07/10/2002 | CN2499241Y Angle arbitarily even divider |
| 07/10/2002 | CN1087237C Improved instruments for drawing circles |
| 07/03/2002 | CN2497986Y Drawing instrument |
| 06/26/2002 | CN2496672Y Drawing device |
| 06/26/2002 | CN2496671Y Elliptic-circular two-purpose compasses |
| 06/26/2002 | CN2496670Y Multipurpose triangle |
| 06/20/2002 | WO2002047920A1 Drawing aid device |