Patents
Sitemap › B43 - Writing or drawing implements; Bureau accessories › B43L - Articles for writing or drawing upon; Accessories for writing or drawing › B43L 21 - Blackboard or slate-cleaning devices
Patents for B43L 21 - Blackboard or slate-cleaning devices (5,409)
08/2010
08/18/2010CN201552924U Multifunctional blackboard eraser
08/18/2010CN201552923U Dustproof blackboard eraser
08/18/2010CN201552922U Dustproof blackboard eraser
08/18/2010CN201552921U Blackboard eraser provided with chalk box
08/18/2010CN201552920U Electric blackboard eraser
08/18/2010CN201552897U Teaching plate
08/18/2010CN201552896U Movable blackboard
08/18/2010CN201552895U Blackboard and blackboard eraser in rolling-type connection
08/18/2010CN201552894U Blackboard convenient to clean
08/18/2010CN201552892U Blackboard provided with sliding-type blackboard eraser
08/18/2010CN201552862U Chalk case
08/11/2010CN201548829U Control system for identifying full-automatic control erasing device by vision
08/11/2010CN201544668U Novel black board eraser
08/11/2010CN201544667U Atomizing blackboard eraser
08/11/2010CN201544666U Intelligent blackboard eraser
08/11/2010CN201544665U Dustless blackboard eraser
08/11/2010CN201544664U Novel blackboard eraser
08/11/2010CN201544663U Dust proof blackboard eraser
08/11/2010CN201544662U Blackboard eraser
08/11/2010CN201544661U Eraser used for water erasable pen
08/11/2010CN201544660U Cleaning waste water collecting device of electric blackboard
08/11/2010CN201544639U Hand blackboard
08/11/2010CN201544638U Novel environment protection blackboard
08/11/2010CN201544636U Blackboard erased in a rolling manner
08/11/2010CN201544627U Multifunctional chalk holder eraser
08/11/2010CN101797859A Dust-free device for writing on blackboard in teaching
08/04/2010CN201538170U Dust collection blackboard eraser
08/04/2010CN201538169U Blackboard eraser
08/04/2010CN201538168U Dust-free blackboard eraser
08/04/2010CN201538167U Novel blackboard eraser
08/04/2010CN201538152U Convenient blackboard
08/04/2010CN201538151U Self-cleaning blackboard
07/2010
07/28/2010CN201534441U 吸尘黑板擦 Eraser dust
07/28/2010CN201534440U blackboard eraser
07/28/2010CN201534433U Automatic anti-spreading dust-absorption blackboard
07/28/2010CN101513809B Electric blackboard
07/21/2010CN201530236U convenient blackboard eraser
07/21/2010CN201530235U Blackboard eraser
07/21/2010CN201530234U Blackboard eraser
07/21/2010CN201530233U Blackboard eraser capable of collecting dust
07/21/2010CN201530232U Water eraser board eraser
07/21/2010CN201530231U Visual identification fully automatic control blackboard erasing device
07/21/2010CN201530230U Blackboard eraser capable of being used as teaching aid concurrently
07/21/2010CN201530221U Runner type blackboard
07/21/2010CN201530220U blackboard
07/14/2010CN201525225U Novel blackboard eraser
07/07/2010CN201520144U Portable blackboard eraser
07/07/2010CN201520143U Novel convenient blackboard brush
07/07/2010CN201520136U Novel blackboard
06/2010
06/30/2010CN201516771U 无尘黑板擦 Clean eraser
06/30/2010CN201516770U Electric dust-free blackboard eraser
06/30/2010CN101758713A Dust-proof blackboard eraser
06/30/2010CN101758712A Handle blackboard eraser
06/23/2010CN201511717U Dust collection blackboard eraser
06/23/2010CN201511716U Blackboard eraser
06/23/2010CN201511715U Novel blackboard brush
06/23/2010CN201511714U Wiping structure capable of regulating wiping position
06/23/2010CN201511701U Electric automatic erasing blackboard
06/23/2010CN201511698U Environmental protection economical blackboard
06/23/2010CN201511696U Multifunctional blackboard
06/23/2010CN201511694U Integrated white board
06/23/2010CN201511693U Four-quadrant colored magnetic drawing board with magnetic pen and seal
06/23/2010CN101746195A Pull type blackboard eraser
06/23/2010CN101746194A Blackboard eraser
06/16/2010CN201506168U Dust-free blackboard eraser
06/16/2010CN201506167U Novel blackboard eraser
06/16/2010CN201506166U Telescopic dust-free eraser
06/16/2010CN101734063A Novel blackboard eraser
06/16/2010CN101734062A Dust absorbing blackboard eraser
06/16/2010CN101734061A Electric blackboard eraser
06/09/2010CN201501229U Blackboard eraser
06/09/2010CN201501228U Dust-proofing blackboard eraser
06/09/2010CN201501227U Environment-friendly blackboard eraser
06/09/2010CN201501226U Glove-type eraser
06/09/2010CN201501225U White board cleaning brush
06/09/2010CN201501215U Belt blackboard
06/09/2010CN201501214U Multifunctional electric and magnetic blackboard
06/09/2010CN201501210U Magnetic drawing board capable of being used as photo frame, message board and household furnishing
06/09/2010CN101722776A Automatic dust absorption blackboard eraser
06/09/2010CN101722775A Novel blackboard eraser
06/09/2010CN101722774A Blackboard eraser
06/02/2010CN201494195U Environmental protection type dust-removing chalkboard eraser
06/02/2010CN201494194U Electrostatic dust-absorbing blackboard eraser
06/02/2010CN201494193U dust-proof blackboard eraser
06/02/2010CN201494192U Chalk wiper
06/02/2010CN201494191U Magnetic blackboard eraser
06/02/2010CN201494190U Blackboard eraser
06/02/2010CN201494189U Multifunctional blackboard eraser
06/02/2010CN201494179U Brushing-free dust prevention blackboard
06/02/2010CN201494178U Blackboard
05/2010
05/26/2010CN201484013U Scrubbing brush sleeve for teaching
05/26/2010CN201484012U Electric blackboard eraser
05/26/2010CN201484011U Dust-absorption blackboard eraser
05/26/2010CN201484010U Negative-pressure blackboard eraser
05/26/2010CN201484009U Blackboard eraser
05/26/2010CN201484008U Novel blackboard eraser
05/26/2010CN201484007U Multifunctional blackboard eraser
05/26/2010CN201484006U Electric blackboard eraser
05/26/2010CN201484005U Dust-absorption blackboard eraser
05/26/2010CN201484004U Environment-friendly blackboard eraser
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