| Patents for B43L 12 - Means to prevent slippage (552) | |
|---|---|
| 11/2010 | |
| 11/24/2010 | CN101890860A Production method and use method of multi-functional compass |
| 11/17/2010 | CN201633395U Teaching triangle |
| 11/10/2010 | CN201626196U Chalk sleeve |
| 11/03/2010 | CN201619363U Blackboard eraser capable of being unpicked and washed |
| 11/03/2010 | CN201619360U Drawing board for teaching |
| 11/03/2010 | CN201619354U Attracted-disc cyclograph |
| 11/03/2010 | CN201619353U Compass for teaching |
| 11/03/2010 | CN201619351U Novel cyclograph |
| 11/03/2010 | CN101875276A Pen provided with adhesive tape support |
| 10/2010 | |
| 10/20/2010 | CN201610019U 一种三角尺 One kind of triangle ruler |
| 10/13/2010 | CN201604430U 采用吸盘定位的圆规 Sucker positioning using compasses |
| 10/13/2010 | CN201604422U 无尘黑板 Clean the blackboard |
| 10/06/2010 | CN201597350U 保护笔尖的墨水瓶 Protection nib ink bottle |
| 10/06/2010 | CN201597300U 铅笔节握笔器 Pencil Festival Wobi |
| 09/2010 | |
| 09/29/2010 | CN201592605U Teaching compasses |
| 09/22/2010 | CN201587243U Eraser with magnet |
| 09/22/2010 | CN201587240U Compass used for teaching |
| 09/15/2010 | CN201580168U Magnetic eraser |
| 09/15/2010 | CN201580138U Pencil with pen knife |
| 09/15/2010 | CN201577964U Anti-slip plastic sleeve |
| 09/08/2010 | CN201573425U Ruler with magnet |
| 09/01/2010 | CN201566353U Convenient blackboard eraser |
| 09/01/2010 | CN201566325U Fixing needle for compasses |
| 09/01/2010 | CN201566324U Multifunctional ruler |
| 09/01/2010 | CN201566317U Anti-slip grid ruler |
| 09/01/2010 | CN201566275U Novel chalk |
| 08/2010 | |
| 08/25/2010 | CN201559445U Character eraser |
| 08/25/2010 | CN201559439U Anti-skidding teaching compass |
| 08/18/2010 | CN201552913U Stable-type graphometer |
| 08/18/2010 | CN201552902U Combined teaching ruler |
| 08/18/2010 | CN201552863U pencil magnetic sleeve |
| 08/18/2010 | CN201552855U Writing pen |
| 08/11/2010 | CN201544671U Saving type ink bottle |
| 08/11/2010 | CN201544649U Stable type compasses for teaching |
| 08/11/2010 | CN201544642U Anti-slip ruler |
| 08/04/2010 | CN201538146U Multifunctional writing pen |
| 08/04/2010 | CN201538142U Pen |
| 07/2010 | |
| 07/28/2010 | CN201534424U 笔尖可调节的自动铅笔 Adjustable mechanical pencil tip |
| 07/14/2010 | CN201525221U Anti-skidding compass |
| 07/07/2010 | CN201520141U Bow compass used for teaching |
| 06/2010 | |
| 06/30/2010 | CN201516767U Compasses dedicated for teaching |
| 06/30/2010 | CN201516752U 粉笔套 Chalk sets |
| 06/30/2010 | CN101758709A Elliptical plotter |
| 06/23/2010 | CN201511710U Novel compasses |
| 06/23/2010 | CN201511709U Teaching compass |
| 06/23/2010 | CN201511687U Propelling pencil |
| 06/23/2010 | CN201511682U Multifunctional pen |
| 06/23/2010 | CN101746192A Convenient ruler for construction on blackboard |
| 06/23/2010 | CN101746191A Novel bow compass |
| 06/16/2010 | CN201506160U Ruler-shaped educational compasses |
| 06/16/2010 | CN101734059A Development of sucker compass |
| 06/09/2010 | CN201501191U Novel pen |
| 06/02/2010 | CN201494185U Multifunctional compasses |
| 05/2010 | |
| 05/26/2010 | CN201483989U Myopia preventing pen sleeve |
| 05/26/2010 | CN201483988U Compasses |
| 05/26/2010 | CN201483962U Antiskid brush pen |
| 05/19/2010 | CN201471967U Compasses for not scratching paper |
| 05/19/2010 | CN201471962U Hand hurt prevention ruler |
| 05/19/2010 | CN201471944U Novel torch pen |
| 05/19/2010 | CN201471940U Short sightedness prevention fountain pen |
| 05/19/2010 | CN201471921U Multifunctional chalk sleeve |
| 05/19/2010 | CN201471918U Pencil sleeve |
| 05/12/2010 | CN201456783U Set square for teaching |
| 05/12/2010 | CN201456781U Novel ellipsometer |
| 05/12/2010 | CN201456779U Teaching compasses |
| 05/12/2010 | CN201456778U Compasses for teaching |
| 05/12/2010 | CN201456770U Multifunctional teaching measurer |
| 05/12/2010 | CN201456731U Novel pen |
| 05/12/2010 | CN201456707U Multifunctional pen |
| 05/12/2010 | CN201456703U Pen capable of conveniently changing core |
| 05/12/2010 | CN201456684U Multifunctional chalk sleeve |
| 05/12/2010 | CN201456683U Convenient chalk jacket |
| 05/12/2010 | CN201456662U Spiral ball pen |
| 05/05/2010 | CN201446809U Sucking disc type cyclograph for teaching |
| 04/2010 | |
| 04/28/2010 | CN201442454U Teaching ruler with magnetic needle |
| 04/28/2010 | CN201442450U Teaching compasses |
| 04/28/2010 | CN201442444U Teaching ruler |
| 04/28/2010 | CN201442417U Novel pen cap |
| 03/2010 | |
| 03/31/2010 | CN201432497Y Sweat absorbing type pencil |
| 03/31/2010 | CN201432495Y Multifunctional pencil cap |
| 03/17/2010 | CN101670736A multifunctional teaching compasses |
| 03/10/2010 | CN201419590Y Suction disc type cyclograph for teaching |
| 03/03/2010 | CN201415568Y Multifunctional ruler for teaching |
| 02/2010 | |
| 02/17/2010 | CN201405650Y Ink bottle |
| 02/17/2010 | CN201405633Y Compasses for teachers |
| 02/11/2010 | US20100031516 Sewing rule steady |
| 01/2010 | |
| 01/20/2010 | CN201385523Y Novel eraser |
| 01/13/2010 | CN201380693Y Propelling pencil capable of preventing pencil lead from slipping |
| 01/06/2010 | CN201376426Y Single-arm compass |
| 12/2009 | |
| 12/23/2009 | CN201366887Y Magnetic sanitary blackboard eraser |
| 12/16/2009 | CN201362111Y Multifunctional blackboard eraser |
| 12/16/2009 | CN201362082Y Automatic chalk |
| 11/2009 | |
| 11/18/2009 | CN201346937Y Blackboard eraser and blackboard using same |
| 10/2009 | |
| 10/28/2009 | CN201333879Y Compasses absorbed on lecture course tablet |
| 10/21/2009 | CN201329743Y Magnetic blackboard compasses fixer |
| 10/21/2009 | CN201329742Y Suction-type compasses |
| 10/21/2009 | CN101559687A Method for producing raised structures on the surface of a pencil |
| 08/2009 | |
| 08/19/2009 | CN201291693Y Multifunctional blackboard eraser |
| 08/19/2009 | CN201291683Y Novel compasses special for blackboard |
| 08/12/2009 | CN201287554Y Suction disc type circular curve-drawing instrument for teaching |