Patents for B43L 1 - Repeatedly-usable boards or tablets for writing or drawing (5,148) | |
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12/2009 | |
12/30/2009 | CN100575121C Method for manufacturing a visual communication panel with ceramic surface layer |
12/24/2009 | US20090317777 Educational Systems and Methods for Learning How to Spell |
12/23/2009 | CN201366888Y Automatic blackboard cleaning system |
12/23/2009 | CN201366880Y Strengthened glass blackboard |
12/23/2009 | CN201366879Y Novel blackboard newspaper board |
12/23/2009 | CN201366878Y Chalkrail |
12/23/2009 | CN201366877Y Magnetic attraction object-holding device |
12/23/2009 | CN201366876Y Magnetic writing blackboard |
12/23/2009 | CN101609630A Bistable magnetic display panel and manufacturing method thereof |
12/16/2009 | CN201362120Y Multifunctional pen container |
12/16/2009 | CN201362100Y Convenient blackboard |
12/16/2009 | CN201362099Y Automatic blackboard |
12/16/2009 | CN201362098Y Improved blackboard |
12/16/2009 | CN201362097Y Automatically-wiping blackboard |
12/16/2009 | CN201362096Y White board frame structure |
12/16/2009 | CN101602307A Environmentally-friendly safe magnetic drawing board core |
12/15/2009 | US7632103 Modular board arrangement |
12/15/2009 | US7632102 Classroom instructional tool |
12/09/2009 | CN201357662Y Roller shutter type magnetic blackboard |
12/09/2009 | CN201357661Y Automatic dust-removing blackboard |
12/09/2009 | CN201357660Y Blackboard equipped with full-automatic dust collection device |
12/09/2009 | CN201357659Y Blackboard capable of absorbing dust |
12/09/2009 | CN201357658Y Magnetic teaching board |
12/09/2009 | CN201357657Y Blackboard with clean blackboard eraser |
12/09/2009 | CN201357656Y Safety glass writing board capable of attaching pictures with magnetic nails |
12/09/2009 | CN201357655Y Content flashboard device for education and entertainment |
12/03/2009 | US20090298041 Writing board |
12/02/2009 | CN201353950Y Dustless blackboard |
12/02/2009 | CN101593476A Multifunctional advertisement light box |
12/02/2009 | CN101590770A Environmental-friendly durable glass writing board |
11/2009 | |
11/25/2009 | CN201350765Y Multi-function rolling-type dust-free blackboard |
11/25/2009 | CN201350764Y Menu |
11/25/2009 | CN101585283A Electric erasing type dustfree soft blackboard |
11/19/2009 | WO2009105694A3 Device for providing a magnetic surface |
11/18/2009 | CN201346937Y Blackboard eraser and blackboard using same |
11/18/2009 | CN201346932Y Novel blackboard |
11/18/2009 | CN201346931Y Multi-function chalkrail |
11/18/2009 | CN201346930Y Blackboard |
11/18/2009 | CN201346929Y Self-cleaning blackboard |
11/18/2009 | CN201346928Y Wordpad |
11/11/2009 | CN201342884Y Pull-type blackboard eraser |
11/11/2009 | CN201342873Y Blackboard with convenient eraser strip |
11/11/2009 | CN201342872Y Blackboard |
11/11/2009 | CN101574883A Tiny magnetic grid blackboard |
11/05/2009 | US20090273833 Single manufacturing process for great writable and erasable functional projecting screen with developing performance |
10/2009 | |
10/29/2009 | US20090266721 School management system |
10/28/2009 | CN201333877Y Blackboard with chalk box |
10/28/2009 | CN201333876Y Teaching blackboard |
10/28/2009 | CN101564957A Magnetic cylinder type liquid concealed lattice writing board |
10/27/2009 | US7607919 Magnetic substance display panel |
10/22/2009 | DE202009007928U1 Wechselbare und wieder verwendbare Schreibauflage Removable and reusable writing surface |
10/21/2009 | CN201329749Y Rolling type blackboard eraser |
10/21/2009 | CN201329737Y Electric teaching blackboard |
10/21/2009 | CN201329736Y Novel blackboard |
10/21/2009 | CN201329735Y Novel blackboard |
10/21/2009 | CN201329734Y Cleaning-facilitated blackboard |
10/21/2009 | CN201329733Y Multifunctional blackboard |
10/21/2009 | CN201329732Y Blackboard chalk dust collecting device |
10/21/2009 | CN100551964C Blackboard panel and producing method thereof |
10/20/2009 | US7604481 White board and white board display system |
10/14/2009 | CN201325266Y Fast automatic blackboard eraser |
10/14/2009 | CN201325261Y Dual-purpose environmental protection blackboard |
10/14/2009 | CN201325260Y Multi-function blackboard |
10/14/2009 | CN201325259Y Novel movable blackboard |
10/14/2009 | CN201325258Y Self adhesive white board |
10/14/2009 | CN101554816A Omnibearing fast blackboard eraser |
10/07/2009 | CN201320908Y Full-automatic blackboard cleaning system |
10/07/2009 | CN201320900Y Environment-friendly blackboard |
10/07/2009 | CN201320899Y Blackboard |
10/07/2009 | CN201320898Y Novel blackboard |
10/07/2009 | CN201320897Y Rotary blackboard |
10/07/2009 | CN101549605A Multimedia teaching blackboard and teaching method |
10/07/2009 | CN101549604A Dustproof blackboard |
09/2009 | |
09/30/2009 | CN201317205Y Electric blackboard with electronic display screen |
09/30/2009 | CN201317204Y Electric blackboard cleaner |
09/30/2009 | CN201317203Y Circulation-type cleaning-free blackboard |
09/30/2009 | CN201317202Y Convenient cleaning blackboard |
09/24/2009 | WO2009066962A3 The method for constructing of blackboard |
09/24/2009 | US20090235562 Display board with integrated card holder and related method of manufacture |
09/17/2009 | WO2009114598A1 Portable retractable erasable writing surface |
09/17/2009 | US20090233265 Portable Retractable Erasable Writing Surface |
09/17/2009 | CA2751763A1 Portable retractable erasable writing surface |
09/16/2009 | CN201309335Y Blackboard |
09/16/2009 | CN101531111A Method for manufacturing implicit writing plate |
09/11/2009 | WO2009090441A3 Front erase magnetic drawing board and magnetic eraser |
09/09/2009 | CN201304811Y Small multifunctional blackboard |
09/09/2009 | CN201304810Y Blackboard |
09/09/2009 | CN201304809Y Self-cleaning writing board |
09/09/2009 | CN201304808Y Writing stationery |
09/09/2009 | CN201304807Y Glass blackboard |
09/09/2009 | CN201304806Y Multi-functional caring reminding rack |
09/03/2009 | WO2009106017A1 An erasable and writable magnet board |
09/03/2009 | WO2009105944A1 A magnetic whiteboard sheet |
09/02/2009 | CN201300620Y Rolling blackboard |
09/02/2009 | CN201300619Y Multifunctional blackboard |
09/02/2009 | CN201300618Y Multidirectional writing board |
09/02/2009 | CN101519013A Reflection prevention blackboard with adjusting angle |
08/2009 | |
08/27/2009 | WO2009105694A2 Device for providing a magnetic surface |
08/26/2009 | CN201296123Y Blackboard eraser with article storage box |
08/26/2009 | CN201296118Y Multifunctional blackboard |