| Patents for B43L 12 - Means to prevent slippage (552) | |
|---|---|
| 10/2011 | |
| 10/05/2011 | CN201998684U Rotary measuring scale |
| 10/05/2011 | CN201998683U Multifunctional ruler combined teaching aid |
| 09/2011 | |
| 09/28/2011 | CN201989511U 带橡胶吸盘的直尺 Ruler with rubber suction cups |
| 09/28/2011 | CN201989510U 一种可调型数学圆规 An adjustable type mathematical compass |
| 09/21/2011 | CN201979958U 吸铁石橡皮 Rubber magnet |
| 09/21/2011 | CN201979938U 一种新型圆规 A new compass |
| 09/21/2011 | CN201979936U 一种多功能教学圆规 A multifunctional teaching compasses |
| 09/21/2011 | CN201979935U 教师专用教学圆规 Special education teachers compasses |
| 09/21/2011 | CN201979933U 一种新型组合尺 A new combination of foot |
| 09/21/2011 | CN201979925U 教学用几何模板 Teaching geometry template |
| 09/14/2011 | CN201970744U 新型墨水瓶 The new ink bottle |
| 09/14/2011 | CN201970726U 一种带磁铁的量角器 A protractor with magnets |
| 09/14/2011 | CN201970725U 一种带磁铁的三角板 A triangle with magnet |
| 09/14/2011 | CN201970724U 一种吸盘式圆规 One kind of suction cup compass |
| 09/14/2011 | CN201970722U 一种吸盘式画圆器 Circle is one kind of suction cup |
| 09/14/2011 | CN201970721U 一种磁吸式圆规 One kind of Magnetic Compass |
| 09/14/2011 | CN201970720U 一种磁吸式画圆器 Magnetic Circle is one kind |
| 09/14/2011 | CN201970719U 一种可调节半径的吸盘式画圆器 An adjustable radius circle suction cup device |
| 09/14/2011 | CN201970718U 一种可调节半径的磁吸式画圆器 An adjustable Magnetic radius of the circle is |
| 09/14/2011 | CN201970717U 一种教学用圆规 A teaching with a compass |
| 09/14/2011 | CN201970716U 一种带磁铁的圆规 A compass with a magnet |
| 09/14/2011 | CN201970715U 游标吸盘教学圆规 Cursor sucker teaching compasses |
| 09/13/2011 | CA2505952C Guide system for forming ink images |
| 09/07/2011 | CN201961015U 一种教学用画圆装置 A teaching device with a circle |
| 09/07/2011 | CN201961014U 教学用吸盘式画圆器 Circle is teaching sucker |
| 09/01/2011 | WO2011104966A1 Self-reliance support tool |
| 08/2011 | |
| 08/31/2011 | CN201951105U 教学用等间距画线器 Teaching drawing a line equidistant |
| 08/31/2011 | CN201951104U 英语教学画线模板尺 English teaching template ruler to draw lines |
| 08/31/2011 | CN201951096U 黑板用圆规 Blackboard with a compass |
| 08/31/2011 | CN201951095U 一种教学圆规 A teaching compasses |
| 08/31/2011 | CN201951094U 一种画图板 One kind of drawing board |
| 08/31/2011 | CN201951092U 一种用于数学教学的绘图器 A plotter Mathematics Teaching |
| 08/31/2011 | CN201951091U 用于保护易损板面的圆规针脚定位器 Used to protect the vulnerability of the board of the compass pin locator |
| 08/31/2011 | CN201951090U 用于保护金属镜面的圆规针脚定位器 Used to protect the metal mirror compass pin locator |
| 08/24/2011 | CN201941446U 一种橡皮 One kind of rubber |
| 08/24/2011 | CN201941433U 数学教师用稳固式作图工具 Mathematics teacher with a solid style drawing tools |
| 08/24/2011 | CN201941426U 教学用圆规 Teaching with a compass |
| 08/24/2011 | CN201941425U 教学用画圆器 Teaching circle is |
| 08/24/2011 | CN201941424U 伸缩式黑板画圆器 Telescopic blackboard circle is |
| 08/24/2011 | CN201941401U 一种带笔孔的尺子 A ruler with a pen hole |
| 08/24/2011 | CN201941382U 一种新型留言板 A new message board |
| 08/17/2011 | CN201931873U 一种带磁铁的橡皮 A magnet rubber band |
| 08/17/2011 | CN201931861U 一种新型圆规 A new compass |
| 08/17/2011 | CN201931860U 一种多功能折叠教学尺 Teaching a multifunctional folding ruler |
| 08/17/2011 | CN102152695A Rolling ruler |
| 08/10/2011 | CN201922793U 黑板擦 Eraser |
| 08/10/2011 | CN201922786U 一种数学教学用画图器 A mathematical teaching drawing device |
| 08/10/2011 | CN201922767U 多功能快捷防滑尺规 Versatile and efficient non-slip ruler |
| 08/10/2011 | CN201922761U 一种多功能尺 A multifunctional foot |
| 08/10/2011 | CN102145623A Compasses pad |
| 08/03/2011 | CN201913962U 一种新型圆规仪 A new compass instrument |
| 07/2011 | |
| 07/20/2011 | CN201900904U Eraser |
| 07/06/2011 | CN201890041U Teaching compasses |
| 07/06/2011 | CN201890037U Anti-slipping ruler |
| 06/2011 | |
| 06/29/2011 | CN201881755U Convenient compasses |
| 06/22/2011 | CN201872476U Free telescopic compasses |
| 06/22/2011 | CN201872474U Compasses |
| 06/15/2011 | CN201863582U Compasses |
| 06/08/2011 | CN201856527U Magnetic ruler |
| 06/01/2011 | CN201849191U Multifunctional eraser |
| 06/01/2011 | CN201849174U Teaching compasses |
| 06/01/2011 | CN201849169U Magnetic compasses |
| 06/01/2011 | CN201849158U Multifunctional teaching ruler |
| 05/2011 | |
| 05/18/2011 | CN201833773U Eraser with adsorbing function |
| 05/18/2011 | CN201833765U Magnetic anti-fouling triangular ruler |
| 05/18/2011 | CN201833762U Teaching compasses |
| 05/18/2011 | CN201833761U Compasses |
| 05/11/2011 | CN102049942A Anti-skidding compass |
| 05/11/2011 | CN102049940A Pen |
| 05/11/2011 | CN102049926A Antiskid pen holder |
| 05/04/2011 | CN201816355U Study aid for handicapped students |
| 05/04/2011 | CN201816353U Compasses used on blackboard |
| 04/2011 | |
| 04/27/2011 | CN201808355U Compass for preventing formation of small hole on paper |
| 04/20/2011 | CN201800391U Ruler type compasses |
| 04/13/2011 | CN201792648U Parabola drawing tool |
| 03/2011 | |
| 03/23/2011 | CN201769565U White board eraser with magnetic face side |
| 03/23/2011 | CN201769557U Teaching compass |
| 03/09/2011 | CN201756001U Staff scriber |
| 03/09/2011 | CN201755999U Teaching ruler |
| 02/2011 | |
| 02/09/2011 | CN201736654U Compasses for drawing on blackboard |
| 02/02/2011 | CN201728995U Multifunctional teaching compass |
| 02/02/2011 | CN201728994U Safe, easily-positioned and telescopic compasses for mathematical education |
| 01/2011 | |
| 01/26/2011 | CN201721209U Teaching compasses |
| 01/26/2011 | CN201721208U Sucking-disc-type cyclograph |
| 01/26/2011 | CN201721205U Compasses |
| 01/26/2011 | CN101954812A Blackboard-writing device |
| 01/19/2011 | CN201712353U Teaching compasses |
| 01/12/2011 | CN201703129U Triangular board with convenient fixing for teaching |
| 01/12/2011 | CN201703126U Antiskid compasses for teaching |
| 01/12/2011 | CN201703125U Blackboard bow compass with sucker |
| 01/12/2011 | CN201703120U Ruler capable of drawing circle |
| 01/12/2011 | CN201703082U Energy-saving pencil cap |
| 01/05/2011 | CN201693938U Blackboard eraser with suction cup |
| 01/05/2011 | CN201693891U Blackboard writing device |
| 01/05/2011 | CN101934670A Skidproof stationery ruler |
| 12/2010 | |
| 12/08/2010 | CN201665090U Novel multifunctional drawing rule |
| 12/08/2010 | CN101905594A Core-changing pencil of bullet pencil core |
| 11/2010 | |
| 11/24/2010 | CN201646147U Multipurpose ruler-compass for teaching |
| 11/24/2010 | CN201646142U Teaching compasses |
| 11/24/2010 | CN201646141U Sphere quantitative circle describing instrument |