| Patents for B43L 11 - Non-circular-curve-drawing instruments (856) | |
|---|---|
| 06/2013 | |
| 06/26/2013 | CN203019913U Ellipsograph |
| 06/19/2013 | CN203004800U Epicycloid teaching aid |
| 06/12/2013 | CN202986531U Amplitude decreasing function image drawing device based on damping vibration |
| 06/12/2013 | CN202986530U Arc drawing tool |
| 05/2013 | |
| 05/29/2013 | CN202952728U Dual-purpose gauge capable of drawing circle and ellipse |
| 05/08/2013 | CN202929905U Epicycloid teaching appliance |
| 05/08/2013 | CN202929904U Hypocycloid teaching appliance |
| 05/08/2013 | CN202923223U Involute plotter |
| 05/08/2013 | CN202923222U Elliptic trammel |
| 05/08/2013 | CN103085544A Elliptic trammel |
| 05/01/2013 | CN202911394U Ellipsograph |
| 04/2013 | |
| 04/17/2013 | CN202879043U Elliptic trammel |
| 04/17/2013 | CN202879042U Hyperbola gauge |
| 04/17/2013 | CN202879029U Multi-functional drawing ruler for math teaching |
| 04/03/2013 | CN202847252U Parabola gauge |
| 04/03/2013 | CN202847251U Device for drawing adjustable curve |
| 04/03/2013 | CN103009886A Multifunctional curve drawing tool |
| 03/2013 | |
| 03/27/2013 | CN202826870U Mathematical teaching aid for drawing ellipses on the blackboard |
| 03/27/2013 | CN202826869U Ellipse compasses |
| 03/27/2013 | CN202826868U Tool for drawing ellipse and hyperbola |
| 03/27/2013 | CN102991216A Elliptical gear profile generator |
| 03/20/2013 | CN202806072U Ruler for drawing ellipse |
| 03/13/2013 | CN202782364U High-accuracy plotting instrument based on mathematical modelling |
| 03/13/2013 | CN202782363U Regularly polygonal special compasses |
| 03/13/2013 | CN102963176A Multifunctional ruler |
| 03/06/2013 | CN202771684U Polar coordinate demonstration frame for advanced mathematics |
| 03/06/2013 | CN102950942A Dual-curve instrument |
| 02/2013 | |
| 02/27/2013 | CN102941763A 一种椭圆规 An Elliptical Regulation |
| 02/27/2013 | CN102941762A Ellipsograph |
| 02/20/2013 | CN202742906U One-step forming elliptic trammel |
| 02/13/2013 | CN202727751U An ellipsograph |
| 02/13/2013 | CN202727750U S-shaped ruler |
| 02/06/2013 | CN102910006A 抛物线规 Parabola Regulation |
| 01/2013 | |
| 01/30/2013 | CN202703024U 一种椭圆规 An Elliptical Regulation |
| 01/23/2013 | CN102887018A Hyperbolograph |
| 01/02/2013 | CN102848824A Equilateral polygon drawing data tablet |
| 12/2012 | |
| 12/26/2012 | CN202623702U Sine function drawing tool |
| 12/26/2012 | CN102837533A Curve gauge |
| 12/05/2012 | CN202573509U Dedicated drawing instrument for drawing ellipses |
| 12/05/2012 | CN202573508U High-precision ellipsograph |
| 11/2012 | |
| 11/28/2012 | CN202557096U Ellipse drawing device |
| 10/2012 | |
| 10/03/2012 | CN202463340U All-purpose geometric drawing board |
| 09/2012 | |
| 09/26/2012 | CN202448593U Ellipsograph for teaching |
| 09/19/2012 | CN202439434U Ellipsograph |
| 09/19/2012 | CN102673272A High-precision elliptic trammel |
| 09/05/2012 | CN202413135U Ellipse drawing device |
| 08/2012 | |
| 08/29/2012 | EP2490902A1 A drawing device for creating mandala |
| 08/29/2012 | CN202399762U Multifunctional drawing rule |
| 08/29/2012 | CN202399761U Ellipse drawing machine |
| 08/15/2012 | CN202378556U Parabola definition teaching demonstration ruler |
| 08/01/2012 | CN202357719U Elliptical compass |
| 07/2012 | |
| 07/18/2012 | CN202337139U 画椭圆的简易工具 Simple tool to draw an ellipse |
| 07/18/2012 | CN102582325A Adjustable ellipse compasses |
| 07/11/2012 | CN202319559U 一种等比渐开线器 One kind of geometric involute device |
| 07/11/2012 | CN202319558U 一种椭圆绘制器 An Elliptical Painter |
| 07/11/2012 | CN202319557U 专用椭圆规 Dedicated oval regulation |
| 07/11/2012 | CN202319556U 教学用椭圆描绘仪 Teaching oval tracer |
| 07/11/2012 | CN202319555U 基于数学建模的多功能绘图仪 Based on mathematical modeling of multi-function plotter |
| 07/11/2012 | CN102555616A Ellipse drawing instrument |
| 07/04/2012 | CN102529522A Multifunctional scale |
| 06/2012 | |
| 06/20/2012 | CN102501687A Curvometer capable of drawing any parabola and hyperbolic curve by one stroke |
| 05/2012 | |
| 05/30/2012 | CN202242606U Hyperbola quick drawing template |
| 05/23/2012 | CN102463788A 正弦曲线笔 Sinusoidal pen |
| 05/09/2012 | CN202213389U Multifunctional drawing gauge |
| 05/09/2012 | CN102442131A Conic section divider caliper |
| 04/2012 | |
| 04/25/2012 | CN102423983A 一种画连接弧线的工具 A tool to connect the arc paintings |
| 04/18/2012 | CN102416803A 椭圆规 Oval Regulation |
| 03/2012 | |
| 03/28/2012 | CN202174865U 一种渐开线画线器 One kind of drawing a line involute |
| 03/28/2012 | CN102390202A Multifunctional divider calipers |
| 03/21/2012 | CN102381106A Ruler for drawing sine wave |
| 03/14/2012 | CN202163187U 新型椭圆规 The new oval Regulation |
| 03/07/2012 | CN202156192U 椭圆规 Oval Regulation |
| 02/2012 | |
| 02/01/2012 | CN202130189U 一次性画出双曲线的教学用具 Disposable draw hyperbolic teaching aids |
| 01/2012 | |
| 01/25/2012 | CN202123849U Multifunctional conic section plotter for teaching |
| 01/18/2012 | CN202115205U Stable ellipse delineating device |
| 01/11/2012 | CN202106759U Mathematical teaching aid |
| 12/2011 | |
| 12/28/2011 | CN202088747U 长、短轴易调的画椭圆教具 Long and short axis of the ellipse aids easy tone painting |
| 12/21/2011 | CN202080007U 滑轨式曲线规 Slide-type curve regulation |
| 12/21/2011 | CN202080006U 一种新型函数坐标仪 A new function coordinatograph |
| 12/14/2011 | CN202071586U 一种数学教学用椭圆仪 A mathematical teaching ellipsometer |
| 12/14/2011 | CN202071583U 多功能量角画弧器 Multifunction devices draw an arc protractor |
| 11/2011 | |
| 11/30/2011 | CN202053794U 管道弯头下料样板图样绘制仪 Pipe elbows cutting template pattern drawing instrument |
| 11/30/2011 | CN202053793U 椭圆尺 Oval foot |
| 11/30/2011 | CN202053792U 二次函数图像仪 Quadratic function imager |
| 11/23/2011 | CN102248842A Multifunctional curvometer capable of drawing ellipse, involute and spiral at one stroke |
| 11/09/2011 | CN202029586U Dual-purpose compass |
| 11/09/2011 | CN202029585U Oval and circumference bisecting compasses |
| 10/2011 | |
| 10/12/2011 | CN202006677U Elliptic trammel |
| 08/2011 | |
| 08/24/2011 | CN201941431U 学生几何模板 Student geometric template |
| 08/24/2011 | CN201941428U 一种教学用椭圆仪 Ellipsometer with a teaching |
| 08/17/2011 | CN201931863U 椭圆规 Oval Regulation |
| 08/17/2011 | CN102152693A Multifunctional drawing ruler |
| 07/2011 | |
| 07/27/2011 | CN101016016B Elastic curve ruler |
| 07/06/2011 | CN201890040U Multipurpose compass |
| 06/2011 | |
| 06/08/2011 | CN201856531U Ellipsograph |
| 06/01/2011 | CN201849177U Geometrical template for student |
| 06/01/2011 | CN201849175U Sine gauge |
| 05/2011 | |
| 05/18/2011 | CN201833764U Tool for drawing hyperbolic curves |
| 05/18/2011 | CN201833757U Multipurpose compasses |
| 05/11/2011 | CN201824723U Multi-purpose ruler for teaching |