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)
07/2012
07/11/2012CN202319599U 一种省力黑板擦 One kind of effort eraser
07/11/2012CN202319598U 一种黑板擦 One kind of eraser
07/11/2012CN202319597U 环保黑板擦 Environmental eraser
07/11/2012CN202319596U 带粉笔盒式黑板擦 Cassette with chalk eraser
07/11/2012CN202319521U 一种传送带式黑板 A conveyor belt blackboard
07/11/2012CN202319520U 一种卷帘式黑板 One kind of rolling blackboard
07/11/2012CN202319519U 自动移动黑板 Automatically move blackboard
07/11/2012CN202319517U 水擦式黑板 Water erasable chalkboard
07/11/2012CN202319516U 黑板 Blackboard
07/11/2012CN202319515U 多功能黑板装置 Multifunction devices blackboard
07/11/2012CN202319513U 一种速擦黑板 One kind of speed effaceurs
07/11/2012CN202319511U 可拆卸黑板槽 Removable blackboard groove
07/11/2012CN202319510U 一种新型黑板 A new board
07/11/2012CN202319509U 一种便利黑板 A convenient blackboard
07/11/2012CN202319457U 一种两用黑板擦套 One kind of dual eraser sets
07/11/2012CN102555628A Bidirectional-driving belt transmission self-absorption-type powder-driven blackboard eraser
07/11/2012CN102553875A Device for collecting blackboard chalk dust
07/04/2012CN202293949U 遥控式黑板擦 Remote-controlled eraser
07/04/2012CN202293948U 吸尘式自动黑板擦 Automatic eraser dust
07/04/2012CN202293947U 可充电式吸尘粉笔刷 Rechargeable vacuum powder brushes
07/04/2012CN202293946U 一种粉笔灰收集盒 One kind of chalk dust collection box
07/04/2012CN202293945U 一种吸尘板擦 One kind of eraser dust
07/04/2012CN202293944U 伸缩式带水黑板擦 Retractable eraser with water
07/04/2012CN202293943U 新型黑板擦 The new eraser
07/04/2012CN202293942U 多功能黑板擦 Multifunction eraser
07/04/2012CN202293941U 黑板刷 Blackboard brush
07/04/2012CN202293940U 可遥控黑板擦 Remote control eraser
07/04/2012CN202293939U 装卸式黑板擦 Removable eraser
07/04/2012CN202293938U 一种防尘降尘的黑板擦 One kind of eraser dust and dust
07/04/2012CN202293937U 一种自动擦黑板装置 An automatic effaceurs device
07/04/2012CN202293936U 一种多功能黑板擦 A multifunctional eraser
07/04/2012CN202293892U 自动吸尘黑板 Automatic cleaning the blackboard
07/04/2012CN202293891U 可控升降自动除尘黑板 Controlled lifting automatic dust blackboard
07/04/2012CN202293888U 具有吸尘槽的黑板 Blackboard has a vacuum tank
07/04/2012CN202293886U 新型黑板 The new board
07/04/2012CN202293885U 一种环保黑板 An environmentally friendly blackboard
07/04/2012CN102529532A Blackboard purifying dust collector
07/04/2012CN102529531A Simple and convenient erasable dust-free eraser
07/04/2012CN102529530A Character eliminating eraser matched with environment-friendly blackboard-writing ink painting pen
06/2012
06/27/2012CN102514424A Whiteboard eraser structure with integrated functions of chemical erasure and physical erasure
06/20/2012CN202278897U 伸缩黑板擦 Retractable eraser
06/20/2012CN202278896U 防尘黑板刷 Dust blackboard brush
06/20/2012CN202278895U 一种吸尘黑板擦 One kind of eraser dust
06/20/2012CN202278894U 一种黑板擦 One kind of eraser
06/20/2012CN202278893U 一种无尘快捷黑板擦 One kind of clean and efficient eraser
06/20/2012CN202278885U 滑动黑板 Sliding blackboard
06/13/2012CN202271737U 吸尘黑板擦 Eraser dust
06/13/2012CN202271736U 自动吸尘黑板擦 Automatic vacuum eraser
06/13/2012CN202271735U 一种黑板擦 One kind of eraser
06/13/2012CN202271734U 一种电子黑板擦 An electronic eraser
06/13/2012CN202271733U 防尘手套式板擦 Eraser dust glove
06/13/2012CN202271725U 湿润机擦黑板 Moist machine effaceurs
06/13/2012CN202271724U 一种自动擦除风干式黑板 An automatic air-dry erase blackboard
06/06/2012CN202264563U 一种转动式环保黑板擦 One kind of rotary green eraser
06/06/2012CN202264562U 一种吸尘式黑板擦 One kind of vacuum-type eraser
06/06/2012CN202264561U 水触式无尘粉笔擦 Water-touch wipe clean chalk
06/06/2012CN202264549U 一种黑板 One kind of blackboard
06/06/2012CN202264547U 一种防尘黑板 One kind of dust blackboard
06/06/2012CN202264544U 白板笔的刷毛的改良结构 Improved structure whiteboard pen bristles
06/06/2012CN102485509A Semiautomatic dust absorption blackboard eraser device
06/05/2012US8191197 Non-permanent marker board eraser apparatus
05/2012
05/30/2012CN202242653U Labor-saving blackboard eraser
05/30/2012CN202242652U Blackboard eraser
05/30/2012CN202242651U Handheld electric blackboard eraser
05/30/2012CN202242650U Board wiping device
05/30/2012CN202242649U Blackboard eraser bracket
05/30/2012CN202242648U Blackboard eraser
05/30/2012CN202242647U Wet absorption type dust-free black board eraser
05/30/2012CN202242646U Dust collection blackboard eraser
05/30/2012CN202242645U Chalk powder negative pressure collector
05/30/2012CN202242644U Dust storage type blackboard eraser
05/30/2012CN202242643U Machine erasing dust collection adjustable blackboard eraser
05/30/2012CN202242642U Blackboard eraser with dust absorption device
05/30/2012CN202242641U Eraser capable of collecting dust
05/30/2012CN202242640U Dust-absorbing type labor-saving blackboard eraser
05/30/2012CN202242639U Dust absorbing blackboard eraser
05/30/2012CN202242638U Water plate dust collecting blackboard eraser
05/30/2012CN202242637U Novel blackboard eraser
05/30/2012CN202242636U Blackboard eraser
05/30/2012CN202242635U Blackboard eraser cleaning machine of environmentally-friendly water erasing blackboard
05/30/2012CN202242634U Blackboard purifying dust collector
05/30/2012CN202242633U Integrated blackboard eraser device
05/30/2012CN202242632U Electric blackboard eraser
05/30/2012CN202242631U Multifunctional blackboard eraser
05/30/2012CN202242630U Water spray-type blackboard eraser
05/30/2012CN202242629U Double-sided dust-absorbing blackboard eraser
05/30/2012CN202242628U LED (light-emitting diode) blackboard eraser
05/30/2012CN202242627U Rotary super-dust cleaning blackboard eraser
05/30/2012CN202242626U Blackboard eraser
05/30/2012CN202242625U Dustproof blackboard eraser
05/30/2012CN202242624U Chalk dust clear-out tank
05/30/2012CN202242623U Telescopic blackboard eraser
05/30/2012CN202242622U Telescopic blackboard eraser
05/30/2012CN202242621U Dust-blocking blackboard eraser
05/30/2012CN202242578U Full-automatic dust-free blackboard
05/30/2012CN202242573U Automatic washing-type blackboard
05/30/2012CN202242572U Combined blackboard capable of automatically erasing characters
05/30/2012CN202242571U Multi-layer blackboard capable of being cleaned automatically
05/30/2012CN202242570U Blackboard
05/30/2012CN202242568U Dustless cleaning-free blackboard
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