| Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769) |
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| 07/28/1993 | CN2139064Y Multipurpose terrestrial magnetic positioning plane straight line ruler |
| 07/21/1993 | EP0551947A1 Pen plotter comprising a drawing instrument store allowing exchange of instruments and grouping of stored instruments, drawing instruments store and drawing instrument group definition process for same |
| 07/21/1993 | CN2138577Y Child sight health instrument |
| 07/14/1993 | CN2138045Y Transparent box for depiction |
| 07/14/1993 | CN2138044Y Multipurpose ruler |
| 07/14/1993 | CN2138043Y Multipurpose ruler with trigonometrical functions calculator |
| 07/08/1993 | WO1993013515A1 Support for the arms and hands of a user of a keyboard, drawing, knitting instrument or apparatus |
| 07/08/1993 | CA2128905A1 Support for the arms and hands of a user of a keyboard, drawing, knitting instrument or apparatus |
| 07/07/1993 | CN2137605Y Standardized answering pattern plate for use in examination |
| 07/07/1993 | CN2137604Y Multipurpose quick drawing ruler |
| 07/07/1993 | CN2137603Y Multifunction drawing ruler |
| 07/07/1993 | CN2137602Y Adjustable protection device for eyesight |
| 07/07/1993 | CN2137601Y Sound alarm for correcting writing posture of children |
| 07/07/1993 | CN2137501Y Tracer |
| 07/06/1993 | US5224269 Instrument for drawing dashed lines or the like |
| 06/30/1993 | CN2137209Y Parallel drawing device |
| 06/30/1993 | CN2137208Y Multifunctional mark-lying ruler |
| 06/30/1993 | CN2137207Y Mark-lying ruler |
| 06/30/1993 | CN2137206Y Three-in-one ruler |
| 06/30/1993 | CN2137097Y Pencil-box |
| 06/23/1993 | CN2136750Y Universal hard pen writing exercise template |
| 06/23/1993 | CN2136749Y Special-purpose curve ruler or temples for students in examination |
| 06/23/1993 | CN2136748Y Multifunction drawing instrument |
| 06/23/1993 | CN2136747Y Studying straightedge |
| 06/16/1993 | CN2136149Y Drawing templet |
| 06/16/1993 | CN2136148Y 便携式绘图机 Portable plotter |
| 06/16/1993 | CN2136146Y Adjustable spline for drawing curve |
| 06/16/1993 | CN2136135Y Pen |
| 06/16/1993 | CN1073139A Templet instrument for stairs |
| 06/09/1993 | CN2135476Y Multi-function drawing board with rolling wheel |
| 06/09/1993 | CN2135475Y Hard pen calligraphy stereo imitate board |
| 06/09/1993 | CN2135474Y Nearsight proof writing board |
| 06/08/1993 | US5217376 Drawing aid |
| 06/08/1993 | US5217313 Writing instrument |
| 06/03/1993 | DE3709918C1 Writing instrument tip |
| 06/02/1993 | CN2134929Y 绘图板 Drawing board |
| 05/26/1993 | EP0543150A2 Printing media feed and retaining apparatus for a thermak inkjet printer/plotter |
| 05/26/1993 | CN2134297Y Misprint correcting pen |
| 05/26/1993 | CN2134296Y Multifunctional set square |
| 05/25/1993 | US5212888 Dual function sensor for a pen plotter |
| 05/19/1993 | DE4137479A1 Pantographic device for true-to-scale drawing of structures - employs laser beam directed along hollow arm for reflection at right angles to plane of projection |
| 05/19/1993 | DE4136604C1 Draughting appts. guide arrester in guide groove - in which slides strap with longitudinal slot tapering from top to groove bottom |
| 05/19/1993 | CN2133464Y Multi-functional slide ruler plate |
| 05/19/1993 | CN2133463Y Multi-purpose quick drawing plate |
| 05/19/1993 | CN2133462Y Health care pen cover |
| 05/19/1993 | CN2133274Y Myopia preventing unit |
| 05/19/1993 | CN1072259A Dual purpose pen capping system for pen plotters. |
| 05/18/1993 | US5210951 Trisector |
| 05/13/1993 | WO1993008990A1 Dual purpose pen capping system for pen plotters |
| 05/13/1993 | CA2123113A1 Dual purpose pen capping system for pen plotters |
| 05/12/1993 | EP0540987A2 Wide-swath printer/plotter using multiple pen cartridges |
| 05/12/1993 | CN1020565C Pen control circuit |
| 05/05/1993 | EP0540265A2 Guideway and support structure for a printer/plotter carriage |
| 05/05/1993 | CN2131714Y Mould plate for computer readable answering cards |
| 05/05/1993 | CN2131713Y Angle drawing rule |
| 05/05/1993 | CN2131712Y Pen with mirror |
| 05/05/1993 | CN2131711Y Health care support for reading and writing |
| 05/05/1993 | CN2131710Y Multifunction plotting instrument |
| 05/05/1993 | CN2131696Y Multipurpose pen cover |
| 05/04/1993 | US5207414 Media handling system for photoplotter and method of use |
| 04/28/1993 | CN2130704Y Multipurpose gauge |
| 04/28/1993 | CN2130703Y Transparent multipurpose plotting instrument |
| 04/28/1993 | CN2130418Y Folding reading and writing rack |
| 04/28/1993 | CN2130417Y Myopia prevention learning board with stationery case and book-rest |
| 04/27/1993 | US5205595 Lock mechanism |
| 04/21/1993 | CN2130137Y 透视仪 Perspective instrument |
| 04/14/1993 | CN2129695Y Centering diagraph |
| 04/14/1993 | CN2129694Y Multifucntion drawing instrument |
| 04/14/1993 | CN2129693Y Multifunction grading device |
| 04/14/1993 | CN2129692Y Folding adjustable pupil sight protective frame |
| 04/13/1993 | US5202958 Plotter with stored image information |
| 04/13/1993 | US5201595 Rolled sheet feeding mechanism of paper-drive type automatic drafting machine |
| 04/13/1993 | CA1315972C Marking tool drive system for drawing machines or similar types |
| 04/07/1993 | EP0535442A1 Device for the production of drawings on paper sheet, for example transparent paper sheet, by using tools generating points, lines, such as pen or compass |
| 04/07/1993 | CN2129226Y Character mother plate |
| 04/07/1993 | CN2129225Y Special ruler for use in the staff and note |
| 04/07/1993 | CN2129224Y Vision protector for reading |
| 04/07/1993 | CN2129223Y Multifunction marking off plate |
| 04/07/1993 | CN2129222Y Multifunction ruler |
| 04/07/1993 | CN2129221Y Multi-purpose ruler |
| 04/01/1993 | DE4132940A1 Drawing unit with built in digitisation function - has pen used to produce lines which are also produced with templates and comprises with digitising panel built into board. |
| 03/24/1993 | EP0533124A1 Method of comparing a test line of a plotter pen with a subsequent plot line |
| 03/24/1993 | EP0533123A1 Method of monitoring and controlling the quality of pen markings |
| 03/24/1993 | EP0533120A2 Optical sensor for monitoring plotter pen performance |
| 03/23/1993 | US5195893 Shape retaining stencil for three dimensional image placement |
| 03/23/1993 | US5195836 Guideway and support structure for a printer/plotter carriage |
| 03/17/1993 | CN2128206Y Flexible drawing rule |
| 03/17/1993 | CN2128205Y Movable coordinate measuring and drawing appliance |
| 03/10/1993 | CN2127915Y Standard test paper answering pattern sheet |
| 03/10/1993 | CN2127914Y Multi-function drawing instrument |
| 03/10/1993 | CN1069696A Parellel ruler structure |
| 03/09/1993 | US5191715 Drafting head for a drafting machine |
| 03/04/1993 | DE4128477C1 Drawing ruler with shifting and arrestable positioner - has clamping element with strap, curved and elastically deformable along its central, longitudinal axis |
| 03/03/1993 | CN2127669Y Multi-functional digital drawing ruler |
| 03/03/1993 | CN2127668Y Eyesight pritecting rack |
| 03/03/1993 | CN2127667Y Multi-functional height-adjustable writing rack |
| 02/25/1993 | DE4127334A1 Writing or drawing board with guide elements - has separate parallel guide and clamp grooves, with slide bolts and clamp device |
| 02/24/1993 | CN2127353Y Myopia-proof writing frame |
| 02/23/1993 | US5187873 Students multi-function protractor |
| 02/18/1993 | WO1993002869A1 Plotter |