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)
10/2010
10/20/2010CN201610024U 反光黑板擦 Reflective eraser
10/20/2010CN101863183A Dust-sucking blackboard eraser
10/13/2010CN201604442U 新型无尘黑板擦 The new clean eraser
10/13/2010CN201604441U 电热蒸汽式防尘黑板 Electric steam-dust blackboard
10/13/2010CN201604440U 一种新型无尘黑板擦 A new clean eraser
10/13/2010CN201604439U 一种新型吸尘黑板擦 A new vacuum eraser
10/13/2010CN201604438U 黑板上的粉笔灰吸收器 Absorber chalk on blackboard
10/13/2010CN201604437U 减尘黑板擦 Less dust eraser
10/13/2010CN201604436U 去尘粉笔擦 Rub chalk to dust
10/13/2010CN201604435U 一种免扬尘黑板擦 A no-dust eraser
10/13/2010CN201604434U 一种清洁黑板擦的装置 Means a clean eraser
10/13/2010CN201604433U 快捷黑板擦 Quick eraser
10/13/2010CN101856938A Blackboard erasing implement
10/06/2010CN201597348U 自动收尘黑板擦 Automatically collecting eraser
10/06/2010CN201597347U 吸尘黑板擦 Vacuum eraser
10/06/2010CN201597346U 组装式电动黑板擦 Assembling electric eraser
10/06/2010CN201597345U 防尘黑板擦 Dust eraser
10/06/2010CN201597344U 一种无尘黑板擦 One kind of clean eraser
10/06/2010CN201597343U 防尘板擦 Dust eraser
10/06/2010CN201597342U 折叠黑板擦 Folding eraser
10/06/2010CN201597341U 新式黑板擦 New eraser
10/06/2010CN201597340U 自动黑板擦 Automatic eraser
10/06/2010CN201597335U 五线谱板书用画线器 Blackboard with drawing a line stave
10/06/2010CN201597326U 半自动组合式黑板 Semi-modular blackboard
10/06/2010CN201597322U 自擦便携式黑板 Since rub portable blackboard
10/06/2010CN201597321U 带电动毛刷的黑板 Blackboard with electric brush
10/06/2010CN101850686A Board eraser connected with dust collector
10/06/2010CN101850685A Dust absorption blackboard eraser
09/2010
09/29/2010CN201592612U Dust absorbing eraser
09/29/2010CN201592611U 黑板擦 Eraser
09/29/2010CN201592610U Blackboard eraser with telescopic barre
09/29/2010CN201592598U Rotating dust-free blackboard
09/29/2010CN101844474A Non-dust eraser
09/22/2010CN201587658U Environmental-protection placing box of blackboard eraser
09/22/2010CN201587252U Novel controllable dust-collecting blackboard eraser
09/22/2010CN201587251U Dustproof blackboard eraser
09/22/2010CN201587250U Clean-type blackboard eraser
09/22/2010CN201587249U Blackboard eraser dustproof guard
09/22/2010CN201587248U 便捷黑板擦 Convenient eraser
09/22/2010CN201587247U Sponge blackboard eraser
09/21/2010US7797784 Net for making body scrubbing tool
09/15/2010CN201580176U Blackboard row eraser
09/15/2010CN201580175U Large-area chalk brush
09/15/2010CN201580174U Dust-proof blackboard eraser
09/15/2010CN201580173U Electric swing eraser
09/15/2010CN201580172U Folding blackboard eraser
09/15/2010CN201580171U Automatic blackboard eraser
09/15/2010CN201580147U Electric dust collection blackboard
09/08/2010CN201573461U Novel blackboard water brush
09/08/2010CN201573460U Blackboard eraser
09/08/2010CN201573459U Blackboard eraser
09/08/2010CN201573458U Blackboard eraser
09/08/2010CN201573457U Blackboard eraser
09/08/2010CN201573456U Blackboard eraser
09/08/2010CN201573455U Blackboard eraser
09/08/2010CN201573454U Blackboard device cleaner
09/08/2010CN201573453U Blackboard eraser
09/08/2010CN201573452U Blackboard eraser
09/08/2010CN201573451U Dustless two-faced chalk brush
09/08/2010CN201573450U Dust box with brush
09/08/2010CN201573449U Chalk eraser capable of dust absorption
09/08/2010CN201573448U Dust-free chalk wiper
09/08/2010CN201573447U Mechanical dust-removal blackboard eraser
09/08/2010CN201573446U Environmental-protecting blackboard brush
09/08/2010CN201573445U Blackboard eraser
09/08/2010CN201573444U Blackboard eraser
09/08/2010CN201573443U Chalkrail rotating and cleaning mechanism
09/08/2010CN201573442U Improvement of chalk eraser structure
09/08/2010CN201573424U Multifunctional blackboard
09/08/2010CN101823392A Dust collecting blackboard eraser
09/01/2010CN201566356U Dedusting blackboard eraser
09/01/2010CN201566355U Dust-collecting type blackboard eraser
09/01/2010CN201566354U Hand-held automatic dust-absorbing blackboard brush
09/01/2010CN201566353U Convenient blackboard eraser
09/01/2010CN201566352U Dust absorbing blackboard
09/01/2010CN201566351U Blackboard eraser with dust collector
09/01/2010CN201566350U Dust-proof blackboard eraser
09/01/2010CN201566349U Dust-sucking blackboard eraser
09/01/2010CN201566348U Multifunctional blackboard eraser
09/01/2010CN201566347U Finger blackboard eraser
09/01/2010CN201566346U Blackboard eraser
09/01/2010CN201566345U Blackboard eraser on glove
09/01/2010CN201566344U Water scraping blackboard eraser
09/01/2010CN201566343U 黑板擦 Eraser
09/01/2010CN201566342U Scalable blackboard eraser
09/01/2010CN201566314U Novel blackboard
09/01/2010CN201566313U Blackboard with blackboard eraser
09/01/2010CN201566311U Blackboard trough
08/2010
08/25/2010CN201559452U Anti-skidding labor-saving blackboard eraser
08/25/2010CN201559451U blackboard eraser
08/25/2010CN201559450U Dust absorbing eraser
08/25/2010CN201559449U Blackboard eraser capable of absorbing dust
08/25/2010CN201559448U dustproof blackboard eraser
08/25/2010CN201559447U Changeable and washable blackboard eraser
08/25/2010CN101417575B Environment-friendly dust-proof eraser
08/18/2010CN201552929U Multifunctional blackboard eraser
08/18/2010CN201552928U Dust-free blackboard eraser
08/18/2010CN201552927U Blackboard eraser
08/18/2010CN201552926U Blackboard brush
08/18/2010CN201552925U Dust collecting blackboard eraser without rope
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