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)
11/2012
11/14/2012CN202528711U Blackboard eraser
11/14/2012CN202528710U Blackboard eraser
11/14/2012CN202528709U Finger blackboard eraser
11/14/2012CN202528708U Reciprocating type self-erasing board
11/14/2012CN202528707U Segmental water type erasing board of blackboard eraser
11/14/2012CN202528706U 黑板擦 Eraser
11/14/2012CN202528677U Dust-free character erasing blackboard
11/14/2012CN202528676U Electric coiling blackboard
11/14/2012CN102774189A Blackboard eraser with fan
11/14/2012CN102774188A Eraser
11/14/2012CN102774187A Foldable board eraser
11/14/2012CN102774182A Capacity expanding blackboard
11/14/2012CN102774180A Dustproof blackboard capable of automatically erasing blackboard writings
11/07/2012CN202517978U Blackboard eraser
11/07/2012CN202517977U Convenient blackboard eraser
11/07/2012CN202517976U Novel blackboard eraser
11/07/2012CN202517975U Chalk writing automatic sweeping device
11/07/2012CN202517974U Dust adsorption blackboard eraser
11/07/2012CN202517973U Novel blackboard eraser
11/07/2012CN202517972U Automatic dust absorption telescopic blackboard eraser
11/07/2012CN202517971U Chalkboard eraser
11/07/2012CN202517970U Electric dust-collecting chalkboard eraser
11/07/2012CN202517969U Electric dust adsorption blackboard eraser
11/07/2012CN202517968U Dust absorption blackboard eraser
11/07/2012CN202517967U Telescopic dust-removal blackboard eraser
11/07/2012CN202517966U Solar dust-collecting blackboard eraser
11/07/2012CN202517965U Blackboard eraser capable of moving up and down
11/07/2012CN202517932U Automatic rotating blackboard
11/07/2012CN202515055U Movable blackboard
11/07/2012CN202515052U Movable blackboard
10/2012
10/31/2012CN202507805U Multifunctional blackboard eraser
10/31/2012CN202507804U Improved dust-free blackboard eraser
10/31/2012CN202507803U 黑板擦 Eraser
10/31/2012CN202507802U Blackboard
10/31/2012CN202507801U Dust collection blackboard eraser
10/31/2012CN202507800U Multifunctional electronic board eraser
10/31/2012CN202507799U Blackboard eraser
10/31/2012CN202507774U Improved blackboard
10/31/2012CN102756593A Dustproof blackboard eraser
10/31/2012CN102756590A Teaching tablet with lighting devices and cleaning brushes
10/24/2012CN202498919U Anti-loss blackboard eraser
10/24/2012CN202498918U Pointer-provided blackboard eraser having item storage function
10/24/2012CN202498917U Dust collecting blackboard wiper
10/24/2012CN202498916U Dust-absorbing blackboard eraser
10/24/2012CN202498915U Electrostatic blackboard eraser
10/24/2012CN202498914U Dust absorption blackboard eraser
10/24/2012CN202498913U Roller brush type dust-collecting blackboard eraser
10/24/2012CN202498912U Automatic blackboard eraser
10/24/2012CN202498911U Blackboard eraser
10/24/2012CN202498890U Automatic wiping blackboard
10/24/2012CN202498889U Blackboard capable of carrying out erasure automatically
10/24/2012CN102745004A Shutter blackboard capable of automatically lifting and removing dust
10/17/2012CN202491616U Electric blackboard eraser
10/17/2012CN202491615U Crank pole capable of assembling blackboard eraser
10/17/2012CN202491614U Dustproof blackboard eraser
10/17/2012CN202491613U Novel blackboard eraser
10/17/2012CN202491612U Fast water-sucking board eraser
10/17/2012CN202491592U Rolling backboard with blackboard erasers
10/17/2012CN202491591U Blackboard set
10/17/2012CN102729707A Blackboard capable of being quickly erased
10/10/2012CN202481175U Magnetic-absorbing type blackboard cleaning wall-climbing robot
10/10/2012CN202480713U Blackboard capable of cleaning automatically
10/10/2012CN202480712U Dustproof eraser
10/10/2012CN202480711U Dustproof blackboard eraser
10/10/2012CN202480710U Blackboard eraser
10/10/2012CN202480709U Novel blackboard eraser
10/10/2012CN202480708U Dust-proof blackboard eraser
10/10/2012CN202480707U Erasing device convenient for cleaning for teaching
10/10/2012CN202480706U Practical blackboard eraser
10/10/2012CN202480705U Replaceable cleaning-type blackboard eraser
10/10/2012CN202480704U Handy board wiper
10/10/2012CN202480663U Automatic character erasing backboard
10/10/2012CN202480662U Novel blackboard for teaching
10/03/2012CN202463382U Blackboard eraser with dust collection function
10/03/2012CN202463381U Electric dust collector of blackboard eraser
10/03/2012CN202463380U Labor-saving dustproof blackboard eraser
10/03/2012CN202463379U Dust-absorption blackboard eraser
10/03/2012CN202463378U Dust absorption blackboard eraser
10/03/2012CN202463377U Dust-free blackboard eraser
10/03/2012CN202463376U Dust-absorption blackboard eraser
10/03/2012CN202463375U Novel blackboard eraser
10/03/2012CN202463374U Blackboard eraser
10/03/2012CN202463373U Portable dustproof blackboard eraser
10/03/2012CN202463372U Dustproof blackboard eraser
10/03/2012CN202463371U Blackboard eraser
10/03/2012CN202463370U Multifunctional blackboard eraser
10/03/2012CN202463369U Blackboard eraser with timing reminder
10/03/2012CN202463368U Multifunctional blackboard eraser
10/03/2012CN202463367U Novel chalk eraser
10/03/2012CN202463366U Novel blackboard eraser with dust cover
10/03/2012CN202463365U Blackboard eraser capable of assisting in asking questions
10/03/2012CN202463364U Convenient blackboard eraser
10/03/2012CN202463363U Electric blackboard eraser with multiple rotating brush heads
10/03/2012CN202463314U Environment-friendly blackboard with overall chalk writing erasure
10/03/2012CN202463310U Multifunctional chalk groove
10/03/2012CN202458229U Multifunctional broom
10/03/2012CN202457309U Blackboard
10/03/2012CN102700333A Blackboard eraser
10/03/2012CN102700332A A group of mechanical blackboard erasers sliding along parallel guide rods
10/03/2012CN102029845B Self-erasure environmental-friendly blackboard
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