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)
09/2012
09/26/2012CN202448614U 黑板擦 Eraser
09/26/2012CN202448613U Labor-saving pollution-free blackboard eraser
09/26/2012CN202448612U Blackboard eraser capable of adsorbing dust
09/26/2012CN202448611U Electric blackboard eraser
09/26/2012CN202448610U Special board eraser for water-soluble grease pen
09/26/2012CN202448609U Blackboard eraser with grooves
09/26/2012CN202448608U Combined blackboard eraser
09/26/2012CN202448607U Improved blackboard eraser
09/26/2012CN202448577U Hygienic and healthy blackboard
09/26/2012CN102689555A Electrostatic dust-removing blackboard eraser
09/26/2012CN102689554A Blackboard eraser capable of storing chalk
09/19/2012CN202439471U Felt and bristle blackboard eraser with dust collector
09/19/2012CN202439470U Blackboard eraser
09/19/2012CN202439469U Dust-absorbing blackboard eraser
09/19/2012CN202439468U Dust collection blackboard eraser
09/19/2012CN202439467U Dust free blackboard eraser
09/19/2012CN202439466U Dust collecting blackboard eraser
09/19/2012CN202439465U Dust-free blackboard brush
09/19/2012CN202439464U Environment-friendly type blackboard eraser
09/19/2012CN202439463U Automatic blackboard eraser
09/19/2012CN202439462U Blackboard eraser convenient for changing sponge body
09/19/2012CN202439461U Novel blackboard eraser
09/19/2012CN202439460U Glove blackboard eraser
09/19/2012CN202439459U Blackboard eraser
09/19/2012CN202439458U Automatic cleaning device for blackboard
09/19/2012CN202439457U Electric blackboard eraser
09/19/2012CN102673273A Electric blackboard eraser
09/12/2012CN202428947U Blackboard eraser capable of changing bristle
09/12/2012CN202428946U Dustproof blackboard eraser
09/12/2012CN202428945U Single-sided dust collecting blackboard eraser
09/12/2012CN202428944U Eraser
09/12/2012CN202428943U Environment-friendly blackboard eraser
09/12/2012CN202428942U Automatic dust absorbing flexible blackboard eraser
09/12/2012CN202428941U Dust-proof blackboard eraser
09/12/2012CN202428940U Black board capable of being automatically erased
09/12/2012CN202428925U Blackboard capable of being cleaned rapidly
09/05/2012CN202413205U Blackboard eraser
09/05/2012CN202413204U Foldable blackboard eraser
09/05/2012CN202413203U Dustless blackboard eraser
09/05/2012CN202413202U Dust-absorption blackboard eraser
09/05/2012CN202413201U Dust storage blackboard eraser
09/05/2012CN202413200U Blackboard eraser capable of absorbing powdered scrap
09/05/2012CN202413199U Dust collecting type blackboard eraser
09/05/2012CN202413198U Dust collecting type blackboard eraser with pressure switch
09/05/2012CN202413197U Detachable and washable blackboard eraser
09/05/2012CN202413196U Wet and dry dual-purpose blackboard eraser
09/05/2012CN202413195U Chalk dust recoverer
09/05/2012CN202413194U Automatic blackboard cleaning machine for recovering chalk dust
09/05/2012CN202413193U Electric dust-free blackboard eraser
09/05/2012CN202413192U Environment protection type blackboard eraser
09/05/2012CN202413191U Dust collection blackboard eraser
09/05/2012CN202413190U Dust absorption blackboard eraser
09/05/2012CN202413189U Blackboard eraser
09/05/2012CN202413188U Dustproof blackboard eraser
09/05/2012CN202413187U Blackboard eraser
09/05/2012CN202413186U Electric blackboard brush with long handle
09/05/2012CN202413185U Blackboard eraser convenient for wiping
09/05/2012CN202413184U Blackboard eraser
09/05/2012CN202413183U Blackboard eraser
09/05/2012CN202413182U Automatic wiping system of blackboard
09/05/2012CN202413181U Cleanable blackboard eraser
09/05/2012CN202413180U Blackboard eraser
09/05/2012CN202413179U Double-side coordinated blackboard eraser
09/05/2012CN202413178U Blackboard eraser
09/05/2012CN202413177U Blackboard eraser capable of spraying water
09/05/2012CN202413176U Water-spray type blackboard eraser
09/05/2012CN202413161U English teaching board
09/05/2012CN202413114U Blackboard capable of being rapidly cleaned
09/05/2012CN202413111U Full-automatic blackboard
09/05/2012CN202413110U Rolling type dustless cleaning-free blackboard
09/05/2012CN202407191U Multi-purpose glove
08/2012
08/29/2012CN202399784U Blackboard eraser with dust collector
08/29/2012CN202399783U Novel electric blackboard eraser
08/29/2012CN202399782U Blackboard eraser
08/29/2012CN202399781U Ink eraser matched with environment-friendly blackboard writing sumi-e
08/29/2012CN202399780U Hand protection blackboard eraser
08/29/2012CN202399779U Multifunctional blackboard eraser
08/29/2012CN202399778U Laborsaving blackboard eraser
08/29/2012CN202399777U Blackboard windscreen wiper
08/29/2012CN202399776U Automatic cleaner for blackboard
08/29/2012CN202399755U Blackboard
08/29/2012CN202399753U Blackboard with eraser
08/29/2012CN202399752U Blackboard
08/29/2012CN202399749U Dustless blackboard
08/29/2012CN202399747U Fixed blackboard with blackboard erasers
08/29/2012CN202399745U Novel blackboard without manual erasing
08/22/2012CN202389069U Glove type blackboard eraser
08/22/2012CN202389068U Static dust absorption blackboard brush
08/22/2012CN202389067U Electric blackboard eraser with dust collector
08/22/2012CN202389066U Direct current electric dust-absorption blackboard eraser for teaching
08/22/2012CN202389065U Multipurpose dust-absorbing blackboard eraser
08/22/2012CN202389064U Dust-collection chalk eraser
08/22/2012CN202389063U Multifunctional automatic-cleaning dust-free blackboard
08/22/2012CN202389062U Convenient blackboard eraser
08/22/2012CN202389061U Electric blackboard eraser
08/22/2012CN202389060U Blackboard with blackboard eraser
08/22/2012CN202389039U Automatic cleaning type blackboard
08/22/2012CN202389038U Blackboard with eraser
08/22/2012CN102642431A Electric whiteboard cleaner
08/15/2012CN202378581U Blackboard eraser for teaching
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