| Patents for B43L 1 - Repeatedly-usable boards or tablets for writing or drawing (5,148) |
|---|
| 10/17/2001 | CN2454146Y Convenient blackboard |
| 10/17/2001 | CN2454145Y Novel blackboard |
| 10/10/2001 | CN2452748Y Magnetic writing plate |
| 10/10/2001 | CN1072567C Self-fading paper and cloth for colour painting and writing exercises |
| 10/03/2001 | CN2451347Y Removable blackboard |
| 09/26/2001 | CN2449934Y 无尘黑板及黑板擦 Clean the blackboard and eraser |
| 09/26/2001 | CN2449933Y Electric dustless self-erasing blackboard |
| 09/26/2001 | CN2449932Y 滑动黑板 Sliding blackboard |
| 09/26/2001 | CN2449931Y Blackboard with chalk dust suction means |
| 09/26/2001 | CN2449562Y Book rest supported from tablef and convertible to flat plate |
| 09/19/2001 | CN2448571Y Bidirectional horizontal slide blackboard |
| 09/19/2001 | CN2448570Y Blackboard with coordinate |
| 09/19/2001 | CN2448569Y Writing execrcising board |
| 09/19/2001 | CN2448568Y Multi-function blackboard for teaching |
| 09/12/2001 | EP1132852A1 Optical coordinate input/detection device with optical-unit positioning error correcting function |
| 09/12/2001 | CN2447190Y 活动黑板 Activities blackboard |
| 09/12/2001 | CN2447189Y Board for scientific research and teaching |
| 09/12/2001 | CN2447188Y Writing brush handwriting drilling apparatus |
| 09/12/2001 | CN2446892Y Multi-purpose frame |
| 09/07/2001 | CA2401561A1 Erasable board kit |
| 09/06/2001 | US20010019325 Optical coordinate input/detection device with optical-unit positioning error correcting function |
| 09/05/2001 | CN2445935Y Blackboard |
| 09/04/2001 | US6284339 Electret film composition adapted for printing on computer printers and the like |
| 09/04/2001 | US6283567 Drawing method for electronic blackboard |
| 08/29/2001 | CN2444781Y Blackboard with automatic cleaning device |
| 08/22/2001 | EP1126236A1 Coordinate input/detection device detecting installation position of light-receiving device used for detecting coordinates |
| 08/16/2001 | EP1123214A1 System to make illustrations |
| 08/08/2001 | CN2441649Y 电子黑板 Electronic blackboard |
| 08/02/2001 | US20010010777 System to make illustrations |
| 08/01/2001 | CN2440667Y Mangetic writing tool |
| 07/25/2001 | CN2439960Y Magnetic writing plate |
| 07/25/2001 | CN2439959Y Colour damp-proof writing plate |
| 07/24/2001 | US6265074 Write-erase board |
| 07/18/2001 | CN2439374Y Novel blackboard |
| 07/04/2001 | CN2437501Y Automatic erasing dust-collecting blackboard |
| 07/04/2001 | CN2437500Y Chalk dust concealed environment protection blackboard |
| 07/04/2001 | CN1301634A 磁力书写板 Magnetic writing board |
| 06/28/2001 | DE19958140A1 White wall panel is magnetic allowing it to be fixed to metal surfaces |
| 06/27/2001 | CN2436324Y 复合型黑板 Composite blackboard |
| 06/27/2001 | CN2436323Y Multi-function blackboard |
| 06/20/2001 | CN2435243Y Electrostatic dust-romoving writing board |
| 06/20/2001 | CN1299741A Magnetic-sensitive marking plate |
| 06/13/2001 | CN2434145Y 无粉尘铁磁性黑板 No dust ferromagnetic blackboard |
| 06/13/2001 | CN2434144Y Electronic blackboard |
| 06/13/2001 | CN2434143Y Shifter of writing board |
| 06/13/2001 | CN1298804A Curtain-type blackboard of plastic film |
| 06/06/2001 | CN2433090Y Blackboard with automatic dust removing and movable plate |
| 06/05/2001 | US6243058 Tribo-addressed and tribo-suppressed electric paper |
| 06/05/2001 | US6241528 Reusable writing table |
| 05/23/2001 | EP1101603A1 Magnetic susceptible markerboard |
| 05/23/2001 | CN2431120Y 小黑板 Small blackboard |
| 05/16/2001 | CN2430742Y Exercising board for handwriting |
| 05/15/2001 | CA2290119A1 Memo holder |
| 05/10/2001 | WO2001032440A1 Combination writing board/reflecting screen sheet |
| 05/09/2001 | CN2429335Y Writing board with automatic and electric rotary eraser |
| 05/09/2001 | CN1294056A Exercise board for drawing on it without paper and pen and its making method |
| 04/25/2001 | CN2427338Y Chalk ash free blackboard |
| 04/25/2001 | CN2427337Y Chalk ash free type writing board |
| 04/18/2001 | CN1064594C Polymeric film |
| 03/28/2001 | CN2424939Y 磁性写字板 Magnetic tablet |
| 03/28/2001 | CN2424938Y Automatic lifting erasing-free dustless blackboard |
| 03/28/2001 | CN2424937Y Belt-type turning blackboard |
| 03/28/2001 | CN2424680Y Hand-pulled top-changing writing board |
| 03/21/2001 | CN2424021Y Magnetic controlled writing board |
| 03/21/2001 | CN2424020Y 多功能黑板 Multifunction blackboard |
| 03/20/2001 | US6203878 Bulletin board accessories and accessory attaching mechanism |
| 03/14/2001 | EP1083538A1 Magnetophoretic display panel |
| 03/14/2001 | CN2423111Y Writing board capable of automatic erasing and dust absorption |
| 03/14/2001 | CN1287059A Board for writing or drawing |
| 03/07/2001 | CN2422148Y Flexible blackboard |
| 03/07/2001 | CN2422147Y Erasing-free dustless blackboard |
| 03/07/2001 | CN2422146Y Dustless electric teaching blackboard |
| 03/07/2001 | CN2422145Y Blackboard without erasing |
| 03/07/2001 | CN2422144Y Electromagnetic dustless blackboard |
| 03/07/2001 | CN2422143Y 钢制弧形绿色书写板 Steel curved green writing board |
| 02/28/2001 | CN2421176Y Electric non-dust teaching blackboard |
| 02/28/2001 | CN2421175Y Rotary blackboard |
| 02/28/2001 | CN1285279A Character-writing board for teaching |
| 02/22/2001 | WO2001012743A1 Composite substrate with adhesive and ferromagnetic properties |
| 02/21/2001 | CN2420142Y Depiction board for chalk character |
| 02/21/2001 | CN1284440A Microcapsule magnetic display board |
| 02/14/2001 | CN2419054Y Rotary dust collecting blackboard |
| 02/14/2001 | CN2419051Y White blackboard |
| 02/14/2001 | CN2419050Y Flexible painting board |
| 02/06/2001 | US6183262 Magnetic drawing board structure |
| 01/31/2001 | EP1072441A2 Blackboard made of metal |
| 01/31/2001 | CN1281796A 磁性黑板 Magnetic blackboard |
| 01/24/2001 | CN2416555Y Training board for handwriting |
| 01/10/2001 | CN2413916Y Acrylic resin writing board for chalk |
| 01/10/2001 | CN2413915Y Plastic film multi-surface writing board |
| 01/10/2001 | CN2413914Y Writing board with platic film surface |
| 01/10/2001 | CN2413913Y Self-erasing writing board |
| 01/03/2001 | CN2412754Y Electric rotating dustless blackboard |
| 01/03/2001 | CN2412753Y Multi-functional teaching board |
| 12/27/2000 | CN2411901Y Dustless blackboard |
| 12/27/2000 | CN2411900Y Large magnetic writing board for demonstration |
| 12/26/2000 | US6164976 Creativity center apparatus and method for use |
| 12/21/2000 | WO2000076700A1 Display devices, accessories therefor and methods |
| 12/20/2000 | CN2411128Y Blackboard device without chalk dust |
| 12/20/2000 | CN2411127Y 黑板 Blackboard |