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)
05/2012
05/30/2012CN202233727U Blackboard slot cleaning brush
05/30/2012CN102476544A 加长滑动式黑板擦 Extended sliding eraser
05/30/2012CN102476543A 一种带杆的黑板擦架 A blackboard rub with bar rack
05/30/2012CN102476542A 吸尘黑板擦 Vacuum eraser
05/30/2012CN102476541A 新型环保黑板擦 New environmentally friendly eraser
05/30/2012CN102476540A 节约环保黑板擦 Environmental conservation eraser
05/23/2012CN202225640U Sanitary blackboard eraser
05/23/2012CN202225639U Convenient blackboard eraser
05/23/2012CN202225638U Inflation blackboard eraser
05/23/2012CN202225626U Blackboard capable of removing chalk dust automatically
05/23/2012CN202225625U Cleaning blackboard
05/23/2012CN202225598U Multifunctional rotary chalk sleeve with miniature blackboard eraser
05/23/2012CN102463809A 吸尘黑板擦 Vacuum eraser
05/23/2012CN102463808A 黑板擦试机 Blackboard smear machine
05/23/2012CN102463807A 一种可收集粉笔灰的擦黑板工具 One kind of tool can collect chalk effaceurs
05/16/2012CN202219689U A blackboard eraser cleaner
05/16/2012CN202219688U Electric blackboard eraser
05/16/2012CN202219687U Track type blackboard eraser
05/16/2012CN102452267A Retractable dual-purpose eraser device
05/16/2012CN102452260A Blackboard
05/16/2012CN102452259A Blackboard groove
05/16/2012CN102452258A Blackboard
05/09/2012CN202213399U Water supplementing blackboard eraser
05/09/2012CN202213398U Dustproof blackboard eraser
05/09/2012CN202213397U Eraser
05/09/2012CN202213396U Automatic blackboard eraser
05/09/2012CN202213395U Magnetic blackboard eraser
05/09/2012CN202213394U Blackboard eraser
05/09/2012CN202213383U Automatic blackboard
05/09/2012CN202213382U Novel electric dust-free blackboard
05/09/2012CN202213381U Circulation type self-wiping blackboard
05/09/2012CN102442136A Environmentally-friendly blackboard eraser
05/09/2012CN102442135A Dustless blackboard eraser
05/09/2012CN102442134A Blackboard eraser
05/09/2012CN102442124A Automatic wiping air drying type blackboard
05/09/2012CN102442121A Automatic blackboard
05/02/2012CN202208218U Blackboard eraser capable of being detached and washed
05/02/2012CN202206904U Backboard eraser finger cot
05/02/2012CN102431364A Dustless blackboard eraser
04/2012
04/25/2012CN202200750U 滚动除尘黑板擦 Scroll dust eraser
04/25/2012CN202200749U 一种电动吸尘黑板擦 An electric vacuum eraser
04/25/2012CN202200748U 收纳式黑板擦 Retractable eraser
04/25/2012CN202200747U 可抽换的粉笔擦 Removable chalk rub
04/25/2012CN102423986A 太阳能吸尘黑板擦 Solar vacuum eraser
04/18/2012CN202192918U 把手可伸缩的黑板擦 Retractable handle eraser
04/18/2012CN202192917U 防尘黑板擦 Dust eraser
04/18/2012CN202192916U 一种黑板擦 One kind of eraser
04/18/2012CN102415857A 清洁机用集尘箱机构 Clean the machine with a dust box agency
04/11/2012CN202186201U 电动黑板擦 Electric eraser
04/11/2012CN202186200U 新型黑板擦 The new eraser
04/11/2012CN202186199U 一种新型黑板擦 A new eraser
04/11/2012CN202186198U 黑板擦 Eraser
04/11/2012CN202186197U 黑板刷 Blackboard brush
04/11/2012CN202186180U 一种黑板结构 One kind of blackboard structure
04/11/2012CN202186179U Blackboard with automatic cleaning device
04/10/2012US8151396 Liquid-sample wiping mechanism and wipe-material holding mechanism for optical measurement apparatus
04/04/2012CN202180682U 一种伸缩粉笔擦 Rub chalk on a Telescopic
04/04/2012CN202180681U 防尘黑板擦 Dust eraser
04/04/2012CN202180680U 吸尘黑板擦 Vacuum eraser
04/04/2012CN202180679U 黑板真空吸尘器的安装装置 The board mounting means of the vacuum cleaner
04/04/2012CN202180678U 一种多功能白板擦 A multifunctional Whiteboard Eraser
04/04/2012CN202180677U 一种环保型黑板擦 An environmentally friendly eraser
04/04/2012CN202180676U 一种人力自动清洁黑板 One kind of human automatic cleaning blackboard
04/04/2012CN202180675U 磁性移动黑板 Magnetic mobile blackboard
04/04/2012CN102398459A 一种可充电式吸尘黑板擦 One kind of rechargeable vacuum eraser
03/2012
03/28/2012CN202174873U 新型黑板擦 The new eraser
03/28/2012CN202174872U 一种绝尘板擦 One kind of pull eraser
03/28/2012CN202174871U 防尘黑板擦 Dust eraser
03/28/2012CN202174870U 一种防尘黑板擦 One kind of eraser dust
03/28/2012CN202174869U 一种可储藏粉笔的黑板擦 One kind can be stored chalk eraser
03/28/2012CN202174859U 一种具有能储存粉笔灰黑板擦的黑板 An energy storage with a chalk blackboard eraser
03/28/2012CN102390206A Amplitude type blackboard eraser
03/28/2012CN102390205A Dust collection blackboard eraser
03/28/2012CN102390204A Rotating environment-friendly blackboard eraser
03/28/2012CN102390203A Automatic charging dust-collection blackboard eraser
03/28/2012CN102390201A Environmentally-friendly blackboard
03/21/2012CN202169829U 新型黑板刷 The new blackboard brush
03/21/2012CN202169828U 电动黑板擦 Electric eraser
03/21/2012CN202169827U 插接黑板擦 Plug eraser
03/21/2012CN202169826U 拆洗型黑板刷 Washable type blackboard brush
03/21/2012CN202169825U 方便清洗的黑板擦 Easy cleaning eraser
03/21/2012CN202169824U 方便黑板刷 Convenient blackboard brush
03/21/2012CN202169823U 一种新型黑板擦 A new eraser
03/21/2012CN202169814U 易于清理的黑板 Easy to clean the blackboard
03/21/2012CN202169810U Electric lifting-descending blackboard
03/21/2012CN102381117A Novel black board eraser
03/21/2012CN102381116A Eraser
03/21/2012CN102381115A Eraser
03/21/2012CN102381114A Convenient blackboard eraser
03/21/2012CN102381113A Absorption type blackboard eraser
03/21/2012CN102381112A Eraser with graphing function
03/21/2012CN102381086A Multifunctional chalk clamp
03/14/2012CN202163197U 多功能黑板擦 Multifunction eraser
03/14/2012CN202163196U 多功能黑板擦 Multifunction eraser
03/14/2012CN202163195U 一种黑板擦 One kind of eraser
03/14/2012CN202163176U 一种黑板 One kind of blackboard
03/14/2012CN202163175U 自动吸尘黑板擦 Automatic vacuum eraser
03/14/2012CN202163174U 新型黑板 The new board
03/14/2012CN102371825A Dust collection eraser
03/14/2012CN102371824A Blackboard eraser with detachable dust clamping box
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