Patents
Sitemap › B43 - Writing or drawing implements; Bureau accessories › B43L - Articles for writing or drawing upon; Accessories for writing or drawing › B43L 1 - Repeatedly-usable boards or tablets for writing or drawing
Patents for B43L 1 - Repeatedly-usable boards or tablets for writing or drawing (5,148)
12/2000
12/20/2000CN2411126Y Repeatedly-used writing and drawing board
12/06/2000EP1057657A1 Process for fabricating a writing board, and writing board obtained with such process
12/06/2000CN2409061Y Multifunctional non-dust health blackboard
12/06/2000CN2409060Y Self-cleaning blackboard
12/06/2000CN1275492A Cover die for cheque seal
11/2000
11/29/2000CN2407945Y High molecular teaching blackboard and white board
11/29/2000CN2407944Y Writing board for computer
11/22/2000CN2406552Y Automatic dust collecting blackboard eraser
11/16/2000WO2000068025A1 An apparatus and a method for automatically erasing a blackboard
11/16/2000CA2368143A1 An apparatus and a method for automatically erasing a blackboard
11/15/2000CN2406305Y Request white flitch
11/15/2000CN2405765Y White board matched with glass of cupboard
11/08/2000CN2404712Y Rolling, self-cleaning and chock-dust suction type black board
11/08/2000CN2404711Y Metallic composite layered black (white) board able to directly be adhered onto wall
11/08/2000CN2404710Y Magnetic displaying type black-board
11/08/2000CN2404709Y Light, safety glass board for writing
11/08/2000CN1272665A Magnetic electrophoretic display device and its manufacturing method
11/02/2000WO2000065278A1 Wall surface structure doubling as illuminating device
11/01/2000CN2403584Y Dustless blackboard
10/2000
10/31/2000US6139331 Board base apparatus
10/25/2000CN2402498Y Handcraft soft blackboard
10/25/2000CN2402497Y Single board lifting blackboard
10/25/2000CN2402496Y Electric steam type dustproof blackboard
10/25/2000CN2402495Y Two-face Chinese brush handwritint drilling board
10/18/2000CN2401375Y Electrostaic adsorbed writing board
10/11/2000CN2400869Y Electrostatic attraction posting writing board
10/11/2000CN2400868Y Electrostatic attraction posting writing board
10/11/2000CN2400867Y Electrostatic attraction posting writing board
10/11/2000CN2400288Y Automatic dust-removing blackboard capable of storing content
10/04/2000EP1040001A1 Electret film composition adapted for printing on computer printers and the like
10/04/2000CN2399226Y Shutter type teaching board
09/2000
09/27/2000CN2398102Y Book-type micro-capsule drawing and writing board
09/27/2000CN2398101Y Multipurpose writing board and writing pen with colour liquid and without dust
09/27/2000CN2398100Y Movable teaching board
09/27/2000CN2398099Y Blackboard
09/27/2000CN1267601A Large demonstrative magnetic writing board and stuffing and magnet powder used therein
09/20/2000CN2396983Y Rotary lamp house blackboard
09/13/2000CN2395901Y Multifunctional automatic erazing blackboard
09/13/2000CN2395900Y Lift-type blackboard
09/05/2000US6113150 Luminescent writing display device having protective layer
08/2000
08/30/2000EP1031960A2 Image display apparatus using ink application means, and ink and image erasing method for use in the apparatus
08/23/2000CN1263829A 书写装置 Writing device
08/16/2000EP1028003A1 Electronic blackboard system
08/16/2000CN2391749Y Dust suction black board
08/16/2000CN1263007A Electrostatic adsorption posting writing board
08/15/2000US6103347 Magnetic display panel
08/10/2000WO2000046042A1 Creativity center apparatus and method of use
08/09/2000CN1262179A Multifunctional blackboard for education
08/09/2000CN1262178A Technology for manufacturing cellular lattice of magnetic writing board
07/2000
07/29/2000CA2260384A1 Educational kit
07/27/2000WO2000043217A1 Device for communicating with a voice-disabled patient
07/26/2000CN2389064Y Rigid foam plastics thin metal compound board
07/25/2000US6092294 Drawing board
07/19/2000CN2388049Y 多功能教学黑板 Multifunction teaching blackboard
07/12/2000CN2386971Y Long service learn-to-write tracing paper
07/12/2000CN2386970Y 折合式书写板 Foldable tablet
07/12/2000CN2386969Y Large width and automatically wipping dual-purpose blackboard
07/12/2000CN2386968Y Teaching blackboard able to be automatically cleaned
07/04/2000CA2070068C Magnetic display system
06/2000
06/28/2000CN2384786Y Telephone set with writing screen
06/21/2000EP1010058A1 Page identification by detection of optical characteristics
06/21/2000CN2383693Y Multifunctional lift curve surface blackboard
06/21/2000CN2383692Y Curved surface blackboard
06/21/2000CN2383691Y Classroom blackboard with automatic wiping and chalk dust-absorbing structure
06/21/2000CN1257010A Large size automatically-erasing type two-purpose blackboard
06/14/2000CN2382569Y Rubber blackboard
06/14/2000CN2382568Y Non metal blackboard with magnetic function
06/08/2000WO2000033286A1 Magnetic display board
06/08/2000DE19856291A1 Sliding flip chart is stored in door-covered shaft in piece of furniture when not in use
06/07/2000CN2381508Y Magnetic writing tool
06/07/2000CN2381507Y Magnetic writing board for erasing writings at anywhere
06/07/2000CN2381506Y Magnetic dust collecting blackboard and eraser thereof
06/02/2000WO2000030867A1 Process for fabricating a writing board, and writing board obtained with such process
05/2000
05/31/2000CN2380402Y Plastic faceboard of blackboard
05/24/2000CN2379330Y Magnetic absorbing type children color painting board
05/24/2000CN2379320Y Plate for coping model of calligraphy
05/24/2000CN2379319Y Dust-removing black (white) board
05/18/2000DE19950125A1 Magnetic display apparatus for e.g. drawing straight line
05/17/2000CN1253081A Shift-type writing board
05/10/2000CN2377102Y Electric chalk dust-less teaching board
05/10/2000CN2377101Y Electrically-operated wet erasing chalk dust-less blackboard
05/10/2000CN2377100Y Handy dual-purpose soft blackboard
05/10/2000CN2377099Y Electrically-operated circulation self-washing erasing blackboard
05/10/2000CN1252352A Dry clearing electronic removing white board with pager width array ink jet printer
05/03/2000CN1251811A Magnetic displaying unit
04/2000
04/26/2000EP0996276A2 Dry erase electronic whiteboard with page-wide-array inkjet printer
04/26/2000CN2375473Y Winding shaft type 'blackboard'
04/19/2000EP0994455A2 Magnetophoresis type display device and process of production of same
04/12/2000CN2373281Y Magnetic teaching board
04/12/2000CN2373280Y 便携式组合黑板 Portable combination blackboard
04/12/2000CN2373279Y Folding writing boardteaching appliance
03/2000
03/30/2000WO2000016993A1 System to make illustrations
03/29/2000CN2371045Y Folder for writing and drawing with slate pencil
03/29/2000CN1248592A 塑料黑板 Plastic blackboard
03/22/2000CN2369874Y Rolling automatic cleaning dustless blackboard
03/22/2000CN1247805A Composite magntic-resin board and manufacture of dust-free blackboard thereof
03/15/2000CN2368715Y Board for water writing and painting
03/15/2000CN2368714Y Magnetic teaching board and eraser
03/15/2000CN2368713Y Dustless writing board
03/15/2000CN1050329C Lifting locating means of movable blackboard
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