| Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769) |
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| 05/31/2000 | CN2380405Y Multifunction drawing means |
| 05/25/2000 | CA2290312A1 Tile tracing apparatus and method |
| 05/25/2000 | CA2254691A1 Tile tracing apparatus and method |
| 05/24/2000 | CN2379324Y Miniature appliance for measuring angle |
| 05/24/2000 | CN2379323Y Multi-functional student's ruler |
| 05/24/2000 | CN2379322Y Multi-functional drawing rule |
| 05/17/2000 | CN2378208Y Multifunction geometric drawing device for pupils |
| 05/02/2000 | US6055738 Stencil and kit for transferring images and method therefor |
| 04/27/2000 | WO2000023763A1 Curve forming device |
| 04/26/2000 | CN2375476Y Stencil for students |
| 04/19/2000 | EP0994059A1 A web having alignment indicia and an associated web feeding and working apparatus |
| 04/12/2000 | CN2373283Y Multifunction teaching drawing rule |
| 04/05/2000 | CN2372151Y Portable lighting drawing rule |
| 03/28/2000 | US6041507 Multiple line drawing aid |
| 03/22/2000 | CN2370432Y Blackboard reflector device |
| 03/22/2000 | CN2370384Y Multifunction set square |
| 03/21/2000 | US6038776 Automatic drafting machine |
| 03/15/2000 | CN2368720Y Multifunctional teaching instrument |
| 03/15/2000 | CN2368719Y Multifunctional portable studio easel |
| 03/08/2000 | CN2367478Y Multipurpose answering questions rule |
| 03/08/2000 | CN2367477Y Positioning magnetic nail |
| 02/23/2000 | CN2365082Y Multi-function square rule |
| 02/23/2000 | CN2365081Y Drawing support for plotting pattern |
| 02/23/2000 | CN2365080Y Multi-function drawing appliances |
| 02/23/2000 | CN2365079Y Device for writing, drawing and practising calligraphy |
| 02/17/2000 | DE19836242A1 Workpiece marking device has marking pen or laser pointer adjusted along measuring rule attached to measuring carriage displaced along workpiece reference edge |
| 02/16/2000 | CN2363898Y Quick smearing device for computer reading card |
| 02/16/2000 | CN2363897Y Coordinate drawing instrument |
| 02/15/2000 | US6025867 Method and a device for retaining a thin medium between two bodies |
| 02/09/2000 | EP0978383A2 Ink feeding circuit device for raster drawing machines |
| 02/07/2000 | CA2279450A1 Ink feeding circuit device for raster drawing machines |
| 02/07/2000 | CA2244567A1 Auxiliary positioning plate for cartoon drawing apparatuses |
| 01/26/2000 | CN2360277Y Drawing board for middle school student |
| 01/26/2000 | CN2360276Y Portable multifunctional plotting instrument |
| 01/18/2000 | CA2108839C Thermochromic opaque composition, laminate member employing the same, and three dimensional member employing said laminate member and capable of concealing and revealing the interior |
| 01/12/2000 | CN2357929Y Rapid drawing board for milldle school student |
| 01/12/2000 | CN2357585Y Health care support for student writing and reading |
| 01/05/2000 | CN2356865Y Universal drawing instrument |
| 12/29/1999 | CN2355896Y Writing rack |
| 12/22/1999 | CN2354777Y Mathematic teaching board for pupils |
| 12/22/1999 | CN2354776Y Accelerated training board for paper-cut skills |
| 12/22/1999 | CN2354775Y Stencil for symbols of extinguishing equipment |
| 12/22/1999 | CN2354774Y Drawing board |
| 12/22/1999 | CN2354773Y Reading support |
| 12/15/1999 | CN2353560Y Drawing implement |
| 12/14/1999 | CA2164541C Multi-function drafting instrument |
| 12/01/1999 | CN2351296Y Polygon drawing instrument |
| 11/24/1999 | CN2350210Y Curve ruler for combined combat commander |
| 11/24/1999 | CN2350209Y Multipurpose check rule |
| 11/17/1999 | CN2349032Y Multi-function rule for student drawing |
| 11/17/1999 | CN2349031Y Multi-function surveying and mapping instrument |
| 11/09/1999 | US5980088 Laser drawing apparatus with precision scaling-correction |
| 11/03/1999 | EP0842056A4 Line marking device |
| 11/03/1999 | CN2346602Y Drawing rule for stadium |
| 11/03/1999 | CN2346601Y Fast drawing board for middle school student |
| 11/02/1999 | US5975674 Optical path optimization for light transmission and reflection in a carriage-mounted inkjet printer sensor |
| 10/27/1999 | CN1045925C Silk-screen printing platemaking process |
| 10/20/1999 | CN2344191Y Multifunctional geometrical drawing instrument |
| 10/14/1999 | WO1999043235B1 Drawing board |
| 10/06/1999 | CN2341812Y Transmission copy character mold card |
| 10/06/1999 | CN2341811Y Synchronous surveying and drawing simulation digit displayer |
| 09/28/1999 | US5956856 Drawing board assembly |
| 09/15/1999 | CN2338179Y Multi-functional curve ruler for teaching purpose |
| 09/14/1999 | US5953494 Method for controlling a drawing apparatus, a drawing apparatus and a waveform recording apparatus |
| 09/02/1999 | WO1999043235A1 Drawing board |
| 08/18/1999 | CN2333552Y Multi-functional angulometer |
| 08/12/1999 | WO1999031466A3 Robotic plotter system |
| 08/11/1999 | CN2332585Y Shiftable indication rope-wheel type drawing ruler |
| 08/04/1999 | CN2331517Y Plate with hole for coating answer |
| 07/29/1999 | DE19901994A1 Paper feed system for ink jet printer |
| 07/28/1999 | CN2331044Y China map modular ruler |
| 07/28/1999 | CN2330525Y Copybook model board |
| 07/21/1999 | CN2329936Y Multifunctional scale |
| 07/21/1999 | CN2329532Y Instrument for evenly dividing arbitrary angle to three angles |
| 06/29/1999 | US5915807 All-in-one drawing apparatus |
| 06/29/1999 | US5915806 Multi-function square |
| 06/24/1999 | WO1999031466A2 Robotic plotter system |
| 06/24/1999 | CA2313455A1 Robotic plotter system |
| 06/16/1999 | CN2323982Y Scaling and drawing-line pen |
| 06/16/1999 | CN2323981Y Screen for writing |
| 06/09/1999 | CN2322802Y Instrument for drawing circle and ellipse |
| 06/08/1999 | CA2217809A1 Thooem (two-um) |
| 06/03/1999 | WO1999026795A1 Universal scale for drawing use |
| 05/26/1999 | CN2320429Y Plane geometry draughting ruler |
| 05/26/1999 | CN2320428Y Multi-functional quick-drawing instrument |
| 05/19/1999 | CN2319230Y Universal purpose mapper |
| 05/12/1999 | EP0915050A1 A web having alignment indicia and an associated web feeding and working apparatus |
| 05/12/1999 | CN2318050Y Multifunctional electric corrector |
| 05/05/1999 | CN2317097Y Multifunctional rule for student |
| 05/04/1999 | US5899146 Cartoon drawer with built-in lamp |
| 04/28/1999 | CN2316146Y Equal divider |
| 04/27/1999 | US5896671 Universal scale and conversion tool |
| 04/21/1999 | CN2314951Y Coordinate, multipurpose drawing set-square |
| 04/20/1999 | US5894671 Compass with angle trisecting capability |
| 04/14/1999 | EP0801605B1 A stencil for making drawings with obtention of a virtual-depth effect and a method for using it |
| 04/06/1999 | CA2149193C Electrical conduit entry template |
| 03/17/1999 | CN2310684Y Bill cutting ruler |
| 03/10/1999 | CN2309958Y Drawing template for mathematics of middle school |
| 03/10/1999 | CN2309957Y Improved structure for magnification and minification rule |
| 03/10/1999 | CN2309956Y Pen for drawing body temperature pulse symbol curve |