| Patents for B43L 21 - Blackboard or slate-cleaning devices (5,409) | |
|---|---|
| 08/2012 | |
| 08/15/2012 | CN202378580U Assisting tool for Chinese teaching |
| 08/15/2012 | CN202378579U Blackboard eraser |
| 08/15/2012 | CN202378578U Blackboard eraser having dust suction function |
| 08/15/2012 | CN202378577U Novel blackboard eraser |
| 08/15/2012 | CN202378576U Sanitary blackboard eraser device |
| 08/15/2012 | CN202378575U Dust absorption blackboard eraser capable of storing chalks |
| 08/15/2012 | CN202378496U Multifunctional chalk sleeve |
| 08/08/2012 | CN202368209U Spliced blackboard eraser |
| 08/08/2012 | CN202368208U Stretchable blackboard eraser |
| 08/08/2012 | CN202368207U Foldable blackboard eraser |
| 08/08/2012 | CN202368206U Novel dust-absorption blackboard eraser |
| 08/08/2012 | CN202368205U Dustless blackboard eraser |
| 08/08/2012 | CN202368204U Dustproof blackboard eraser |
| 08/08/2012 | CN202368203U Finger sleeved blackboard eraser |
| 08/08/2012 | CN202368202U Convenient blackboard eraser |
| 08/08/2012 | CN202368201U Blackboard eraser with sleevelet |
| 08/08/2012 | CN202368200U Two-end telescopic blackboard eraser |
| 08/08/2012 | CN202368199U Magnetic environmental-friendly water spraying eraser |
| 08/08/2012 | CN202368198U Novel blackboard eraser |
| 08/08/2012 | CN202368197U Blackboard eraser with replaceable bristles |
| 08/08/2012 | CN202368163U Motor-driven fast blackboard |
| 08/08/2012 | CN102627048A Reciprocating self-wiping plate |
| 08/01/2012 | CN202357742U Blackboard eraser with dust absorption function |
| 08/01/2012 | CN202357741U Dust sucking blackboard eraser |
| 08/01/2012 | CN202357740U Dust-collecting eraser |
| 08/01/2012 | CN202357739U Blackboard eraser |
| 08/01/2012 | CN202357738U Novel blackboard brush |
| 08/01/2012 | CN202357737U Blackboard eraser |
| 08/01/2012 | CN202357736U Novel and convenient blackboard brush |
| 08/01/2012 | CN202357735U Blackboard eraser with extension rod |
| 08/01/2012 | CN202357734U Novel blackboard eraser |
| 08/01/2012 | CN202357733U Blackboard eraser |
| 08/01/2012 | CN202357732U White board cleaning brush |
| 08/01/2012 | CN202357731U Detachable washable white board eraser |
| 08/01/2012 | CN202357664U Chalk shell with eraser |
| 08/01/2012 | CN102616065A Remote control type dustless blackboard eraser |
| 08/01/2012 | CN102616064A Automatic dust collection blackboard eraser |
| 07/2012 | |
| 07/25/2012 | CN202345210U Blackboard eraser |
| 07/25/2012 | CN202345209U Telescopic blackboard eraser |
| 07/25/2012 | CN202345208U Electric blackboard eraser |
| 07/25/2012 | CN202345207U Automatic dust sucking blackboard eraser |
| 07/25/2012 | CN202345206U Dust-absorption board eraser |
| 07/25/2012 | CN202345205U Dust-absorbing blackboard eraser |
| 07/25/2012 | CN202345204U Hand-held dust-absorbing blackboard eraser |
| 07/25/2012 | CN202345203U Dust absorption chalk eraser |
| 07/25/2012 | CN202345202U Full-automatic blackboard eraser with dust sucking device |
| 07/25/2012 | CN202345201U Blackboard eraser |
| 07/25/2012 | CN202345200U Multifunctional blackboard eraser |
| 07/25/2012 | CN202345199U Blackboard eraser |
| 07/25/2012 | CN202345198U Blackboard eraser |
| 07/25/2012 | CN202345197U High efficient blackboard eraser |
| 07/25/2012 | CN202345196U Board eraser integration device for teaching |
| 07/25/2012 | CN202345195U Novel blackboard eraser |
| 07/25/2012 | CN202345194U Blackboard eraser with telescopic pointer |
| 07/25/2012 | CN202345152U Blackboard with eraser |
| 07/25/2012 | CN202345150U Novel automatic cleaning blackboard |
| 07/25/2012 | CN202345148U Push-pull type combined blackboard |
| 07/18/2012 | CN202337153U 一种新型静电除粉尘黑板擦 A new addition to static dust eraser |
| 07/18/2012 | CN202337152U 双面除尘黑板擦 Sided dust eraser |
| 07/18/2012 | CN202337151U 自动黑板擦 Automatic eraser |
| 07/18/2012 | CN202337150U 一种卫生型黑板擦 A sanitary type eraser |
| 07/18/2012 | CN202337149U 一种自动擦黑板装置 An automatic effaceurs device |
| 07/18/2012 | CN202337148U 新型黑板擦 The new eraser |
| 07/18/2012 | CN202337147U 干湿分区黑板擦 Wet and dry area eraser |
| 07/18/2012 | CN202337146U 一种带伸缩柄的黑板擦 A blackboard with telescopic handle rub |
| 07/18/2012 | CN202337131U 带白板的黑板 Blackboards with whiteboards |
| 07/11/2012 | CN202331894U 多功能教杆 Multifunction teach pole |
| 07/11/2012 | CN202319632U 新型板擦 The new eraser |
| 07/11/2012 | CN202319631U 折叠黑板擦 Folding eraser |
| 07/11/2012 | CN202319630U 黑板擦夹持杆 Eraser clamping lever |
| 07/11/2012 | CN202319629U 一种粉笔擦 One kind of rub chalk |
| 07/11/2012 | CN202319628U 一种除灰黑板擦 Except one kind of gray eraser |
| 07/11/2012 | CN202319627U 一种省力防尘黑板擦 One kind of effort eraser dust |
| 07/11/2012 | CN202319626U 一种电动吸尘式黑板擦 An electric vacuum-type eraser |
| 07/11/2012 | CN202319625U 可防止粉尘溢出的板擦 Prevent dust overflow eraser |
| 07/11/2012 | CN202319624U 一种环保黑板擦 An environmentally friendly eraser |
| 07/11/2012 | CN202319623U 海绵毛发组合式黑板擦 Combined eraser sponge hair |
| 07/11/2012 | CN202319622U 一种黑板擦 One kind of eraser |
| 07/11/2012 | CN202319621U 一种吸尘黑板擦 One kind of eraser dust |
| 07/11/2012 | CN202319620U 一种可收集粉笔末的粉笔擦 One can be collected at the end of rubbing chalk chalk |
| 07/11/2012 | CN202319619U 一种盒式防尘黑板擦 A cartridge type dust eraser |
| 07/11/2012 | CN202319618U 黑板擦 Eraser |
| 07/11/2012 | CN202319617U 静电负压复合式除尘黑板擦 Negative electrostatic dust eraser compound |
| 07/11/2012 | CN202319616U 一种吸尘黑板擦 One kind of eraser dust |
| 07/11/2012 | CN202319615U 一种吸灰黑板擦 One kind of suck gray eraser |
| 07/11/2012 | CN202319614U 吸尘黑板擦 Eraser dust |
| 07/11/2012 | CN202319613U 一种自动吸尘黑板擦 An automatic dust eraser |
| 07/11/2012 | CN202319612U 一种静电除尘黑板擦 An electrostatic dust eraser |
| 07/11/2012 | CN202319611U Dust absorbing blackboard eraser |
| 07/11/2012 | CN202319610U 电动板刷 Electric scrubbing brush |
| 07/11/2012 | CN202319609U 一种新型黑板擦 A new eraser |
| 07/11/2012 | CN202319608U 一种新型可拆卸板擦 A new removable eraser |
| 07/11/2012 | CN202319607U 组合式黑板擦 Combined eraser |
| 07/11/2012 | CN202319606U 一种可发音的黑板擦 One kind pronounceable eraser |
| 07/11/2012 | CN202319605U 一种可拆卸的粉笔擦 A removable rub chalk |
| 07/11/2012 | CN202319604U 幕式粉笔末擦除收集装置 Episodic end erasing chalk collection device |
| 07/11/2012 | CN202319603U 一种磁性环保板擦 A magnetic green eraser |
| 07/11/2012 | CN202319602U 手套式黑板擦 Glove eraser |
| 07/11/2012 | CN202319601U 一种挂式黑板擦 One kind of hanging eraser |
| 07/11/2012 | CN202319600U 一种带柄黑板擦 One kind of eraser Shank |