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