| Patents for B43L 1 - Repeatedly-usable boards or tablets for writing or drawing (5,148) |
|---|
| 09/04/2002 | CN2508978Y Up-down blackboard |
| 09/04/2002 | CN1367090A Dustless blackboard |
| 08/28/2002 | CN2507659Y Dust-less board for teaching |
| 08/27/2002 | US6441807 Display system |
| 08/21/2002 | CN2506452Y Circulation type closed cleaing and dust collecting blackboard |
| 08/14/2002 | CN2505296Y Blackboard |
| 08/14/2002 | CN2505295Y Back-light hand writing board |
| 08/07/2002 | CN2504088Y 电磁书写装置 Electromagnetic writing device |
| 08/07/2002 | CN2504087Y Full automatic wiping dustless teaching board |
| 08/07/2002 | CN1362335A Thick water writing calligraphic exercise board |
| 08/06/2002 | US6429856 Coordinate position inputting/detecting device, a method for inputting/detecting the coordinate position, and a display board system |
| 08/01/2002 | US20020102420 Laminate, comprising: a first resin impregnated layer; and a distinct, magnetically active sheet. |
| 07/31/2002 | CN1088533C Microcapsules for magnetic displaying |
| 07/25/2002 | US20020096875 Label |
| 07/24/2002 | CN2501696Y Fully automatic dust-removing blackboard eraser |
| 07/24/2002 | CN1359807A Cyclically used exercising board for calligraphy and its making method |
| 07/23/2002 | US6422875 Device for communicating with a voice-disabled patient |
| 07/17/2002 | CN2500491Y Novel blackboard |
| 07/17/2002 | CN2500490Y Dust absorpting blackboard |
| 07/17/2002 | CN1359339A An apparatus and a method for automatically erasing a blackboard |
| 07/16/2002 | US6421042 Coordinate position inputting/detecting device, a method for inputting/detecting the coordinate position, and a display board system |
| 07/10/2002 | CN2499239Y 万用写字板 Universal WordPad |
| 07/09/2002 | US6416329 Writing device for practice in writing characters |
| 07/03/2002 | EP1218133A1 Display devices, accessories therefor and methods |
| 07/03/2002 | CN2497985Y Circularly liftable blackboard |
| 06/27/2002 | US20020080125 Electronic whiteboard and penholder used for the same |
| 06/26/2002 | CN2496668Y Stealth backboard for teaching |
| 06/26/2002 | CN1355105A Magnetic-particle wiring board |
| 06/26/2002 | CN1086646C Composite magnetic-resin board and manufacture method of dust-free blackboard thereof |
| 06/20/2002 | US20020075250 Image display apparatus and method, information processing apparatus using the image display apparatus, and storage medium |
| 06/19/2002 | CN2495480Y Small black board |
| 06/19/2002 | CN2495479Y Black board |
| 06/05/2002 | CN1351935A Return type blackboard |
| 05/23/2002 | US20020061508 Magnetic coloring kit |
| 05/16/2002 | US20020056380 Media for gel-ink printing |
| 05/15/2002 | CN2491244Y Portable and overturnable-used multilayer blackboard |
| 05/15/2002 | CN2491243Y Magnetic writing analog board |
| 05/14/2002 | US6387485 Composite substrate with adhesive and ferromagnetic properties |
| 05/10/2002 | WO2002037409A1 Method for manufacturing a porcelain enameled writing board |
| 05/09/2002 | US20020054377 Electronic board apparatus and data processing method for electronic board apparatus |
| 05/08/2002 | DE10055144A1 Board for presentation of information comprises a writable surface formed by a foil on a carrier plate |
| 05/08/2002 | CN1348131A 电子白板 Whiteboard |
| 05/08/2002 | CN1084261C 带式黑板 Belt blackboard |
| 05/01/2002 | CN2488701Y Dustless blackboard |
| 05/01/2002 | CN2488700Y Fully automatic dust absorption type blackboard |
| 04/30/2002 | US6379001 Image display apparatus, and ink and image erasing method for use in the apparatus |
| 04/24/2002 | CN2487562Y Blackboard |
| 04/17/2002 | CN2486344Y Multifunction teaching board |
| 04/10/2002 | CN2485150Y Blackboard |
| 04/09/2002 | US6368002 Parking mechanism for storing and exchanging end effectors used in a system for performing actions over vertical surfaces |
| 04/09/2002 | US6367902 Effector platform for performing actions over vertical surfaces |
| 04/03/2002 | CN2484189Y New-type hidden-line blackboard |
| 04/03/2002 | CN2484188Y Lifting blackboard without weight blocks |
| 04/03/2002 | CN2484187Y Writing board |
| 04/03/2002 | CN2484186Y Electrostatic-absorbing magnetic writing board for posting |
| 04/03/2002 | CN1342560A Marble-like blackboard and its making technology |
| 03/27/2002 | CN2483197Y Amusement and teaching use board |
| 03/20/2002 | CN2482503Y Blackboard with means for automatic cleaning and absorbing the chalk dust |
| 03/14/2002 | DE10038784A1 Electronic graphics tablet for computer, displays track of pressure sensitive pen as the optical refraction factor at bond locations of dark and transparent foils change |
| 02/28/2002 | WO2002016147A1 Learning board |
| 02/27/2002 | EP1181156A1 An apparatus and a method for automatically erasing a blackboard |
| 02/27/2002 | CN2478796Y Crawler blackboard without chalk dust |
| 02/27/2002 | CN2478792Y Blackboard with coordinate |
| 02/27/2002 | CN2478791Y Automatic dust-removing blackboard (whiteboard) |
| 02/20/2002 | CN2477393Y Novel lifting blackboard |
| 02/20/2002 | CN2477392Y Foldable lifting blackboard |
| 02/20/2002 | CN2477391Y Portable dual-purpose blackboard |
| 02/12/2002 | US6346024 Bath toy with thermally erasable drawing surface |
| 02/06/2002 | CN2475567Y Multiface blackboard |
| 02/06/2002 | CN2475566Y Study or writing board |
| 01/30/2002 | CN2474344Y Multifunction fully automatic environmental protection blackboard |
| 01/24/2002 | US20020009703 Two sided writing board |
| 01/24/2002 | US20020008692 Electronic blackboard system |
| 01/23/2002 | CN2472970Y Full automatic blackboard eraser for teaching |
| 01/22/2002 | US6340965 Modifiable display having fixed image patterns |
| 01/16/2002 | CN2471552Y Automatic blackboard |
| 01/02/2002 | EP1167071A1 Image reproducing apparatus |
| 01/02/2002 | CN2468754Y 磁性书写板 Magnetic writing board |
| 01/02/2002 | CN2468753Y Electric black board with screen |
| 01/02/2002 | CN2468752Y Rotary and self-cleaning and non-chalk dust type black board |
| 01/02/2002 | CN2468751Y Automatic water cleaning and anti reflection type black board |
| 12/26/2001 | CN1328316A Magnet reversing turn display screen |
| 12/26/2001 | CN1327917A Magnetophoresis display panel |
| 12/19/2001 | CN2465952Y Electric chalk dust-less blackboard |
| 12/12/2001 | CN2464553Y Slide blackboard |
| 12/05/2001 | CN2463182Y Circular belt type blackboard |
| 12/05/2001 | CN2463181Y New blackboard |
| 11/28/2001 | CN2461778Y Electric dustless blackboard |
| 11/21/2001 | CN2460318Y blackboard with dust remover |
| 11/20/2001 | US6318825 Dry erase electronic whiteboard with page-wide-array inkjet printer |
| 11/14/2001 | CN2459181Y Fully automatic blackboard |
| 11/14/2001 | CN2459180Y White writing board |
| 11/13/2001 | US6315573 Article placing table with an erasable writing device |
| 11/07/2001 | CN1074562C Memory writing learning board by means of blank space contrast |
| 10/31/2001 | EP1148997A1 Creativity center apparatus and method of use |
| 10/31/2001 | EP1010058B1 Page identification by detection of optical characteristics |
| 10/31/2001 | CN2456921Y Intelligent environment protection blackboard |
| 10/24/2001 | CN2455483Y Magnetic board for teaching |
| 10/23/2001 | US6307542 Magnet-based information input apparatus |
| 10/18/2001 | WO2001076888A1 A children drawing board |