B43L 21 - Blackboard or slate-cleaning devices

Patents for B43L 21 - Blackboard or slate-cleaning devices (5,409)
06/2011
06/29/2011	CN201881778U Blackboard eraser capable of spraying water
06/29/2011	CN201881777U Dustproof blackboard eraser
06/29/2011	CN201881776U Novel blackboard eraser
06/29/2011	CN201881775U Blackboard eraser convenient for cleaning
06/29/2011	CN201881774U Dust-absorption blackboard eraser
06/29/2011	CN201881773U Cleaning blackboard eraser
06/29/2011	CN201881772U Simple eraser
06/29/2011	CN201881771U Novel blackboard eraser
06/29/2011	CN201881770U Vibrating eraser
06/29/2011	CN201881769U Blackboard eraser with mirror
06/29/2011	CN201881768U Blackboard eraser
06/29/2011	CN201881767U Blackboard brush
06/29/2011	CN201881766U Multifunctional magnetic blackboard eraser
06/29/2011	CN201881742U Automatic cleaning blackboard
06/29/2011	CN201881740U Environment-friendly teaching board
06/29/2011	CN201881739U Rotational-mechanical-cleaning dust-absorbing blackboard
06/22/2011	CN201872494U Dust-absorbing blackboard eraser
06/22/2011	CN201872493U Dust collection blackboard eraser
06/22/2011	CN201872492U Dust-free blackboard eraser
06/22/2011	CN201872491U Blackboard cleaning device
06/22/2011	CN201872490U Dustproof blackboard eraser
06/22/2011	CN201872489U Automatic eraser
06/22/2011	CN201872488U Blackboard eraser easy to remove ash
06/22/2011	CN201872487U Novel blackboard eraser
06/15/2011	CN201863593U Easy-to-use blackboard eraser
06/15/2011	CN201863592U Dust collection blackboard eraser
06/15/2011	CN201863591U Blackboard eraser capable of collecting chalk dust
06/15/2011	CN201863590U Novel blackboard eraser
06/15/2011	CN201863577U Dust collecting blackboard
06/15/2011	CN201863576U Blackboard with dust collecting device
06/15/2011	CN102092224A Automatic blackboard eraser
06/15/2011	CN102092222A Multifunctional blackboard eraser
06/08/2011	CN201856546U Dust collection blackboard eraser
06/08/2011	CN201856545U Blackboard eraser
06/08/2011	CN201856544U Chalk eraser capable of collecting dust
06/08/2011	CN201856543U Blackboard eraser with dust collector suction head
06/08/2011	CN201856542U Adjustable blackboard eraser
06/08/2011	CN201856541U Combination type blackboard eraser
06/08/2011	CN201856540U Chalk box type blackboard eraser
06/08/2011	CN201856539U Novel board eraser
06/08/2011	CN201856523U 粉笔灰槽 Chalk groove
06/08/2011	CN201856522U Rotary type blackboard
06/08/2011	CN201856520U Blackboard with eraser
06/01/2011	CN201849210U Pull type eraser
06/01/2011	CN201849209U Dustless blackboard eraser
06/01/2011	CN201849208U Solar dust-absorbing blackboard eraser
06/01/2011	CN201849207U Blackboard eraser
06/01/2011	CN201849206U Dust-collection blackboard eraser
06/01/2011	CN201849205U Dual-purpose blackboard eraser
06/01/2011	CN201849204U Dust collecting blackboard eraser
06/01/2011	CN201849203U Dustproof blackboard eraser
06/01/2011	CN201849202U Blackboard duster automatically spraying water
06/01/2011	CN201849201U Blackboard eraser capable of absorbing dust
06/01/2011	CN201849200U Blackboard brush
06/01/2011	CN201849199U Blackboard eraser
06/01/2011	CN201849198U Double-side blackboard eraser
06/01/2011	CN201849197U Telescopic dual-purpose blackboard eraser
06/01/2011	CN201849196U Telescopic eraser
06/01/2011	CN201849195U Multifunctional blackboard eraser
06/01/2011	CN201849194U Blackboard brush
06/01/2011	CN201849155U 黑板 Blackboard
06/01/2011	CN201849154U Folding multifunctional blackboard
06/01/2011	CN201849153U Blackboard capable of being automatically cleaned
06/01/2011	CN201849152U Blackboard slot
06/01/2011	CN102079209A Novel blackboard eraser
06/01/2011	CN102079208A Blackboard eraser with reflector
06/01/2011	CN102079203A Blackboard with chalk powder cleaning groove
06/01/2011	CN102079197A Hand-protecting chalk sleeve capable of removing dust
05/2011
05/25/2011	CN201841845U Conveniently cleaned double-side blackboard eraser
05/25/2011	CN201841844U Dustless blackboard eraser
05/25/2011	CN201841843U Rechargeable blackboard eraser taking shape of large square divided into four smaller squares
05/25/2011	CN201841842U Dust-proof blackboard eraser
05/25/2011	CN201841841U Dust-absorption blackboard eraser
05/25/2011	CN201841840U Dust collection type electric blackboard eraser capable of automatically erasing blackboard
05/25/2011	CN201841839U Novel blackboard eraser
05/25/2011	CN201841838U Blackboard eraser
05/25/2011	CN201841837U Novel blackboard eraser
05/25/2011	CN201841823U Roller shutter type blackboard
05/25/2011	CN201841822U Self-rubbed type remote control teaching board
05/25/2011	CN201841820U Backboard
05/25/2011	CN201841818U Glow discharge electronic blackboard
05/25/2011	CN201841789U Retractable chalk device with chalks in different colors and blackboard eraser
05/25/2011	CN102069668A Dust absorption black board eraser
05/25/2011	CN102069667A Vibrating blackboard eraser
05/25/2011	CN102069666A Eraser with packed structure
05/18/2011	CN201833786U Automatic blackboard eraser device with simple structure
05/18/2011	CN201833785U Box type blackboard eraser with telescopic rod
05/18/2011	CN201833784U Blackboard eraser convenient to use
05/18/2011	CN201833783U Plastering device for blackboard
05/18/2011	CN201833782U Novel blackboard eraser
05/18/2011	CN201833781U Dust-free blackboard eraser
05/18/2011	CN201833780U Bidirectional self-erasing absorbing type wide blackboard eraser
05/18/2011	CN201833779U Blackboard eraser for dust absorption manually
05/18/2011	CN201833778U Electric dust suction chalk brush
05/18/2011	CN201833777U Novel blackboard eraser
05/18/2011	CN201833776U Multifunctional blackboard eraser
05/18/2011	CN201833775U Blackboard eraser
05/18/2011	CN201833774U Novel dust removal and collection blackboard eraser box
05/18/2011	CN201833743U Convenient-to-clean chalk dust receiving groove for blackboard
05/18/2011	CN201833699U Saving type chalk

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