B43L 1/04

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9969208 Magnetic whiteboard utility holderJun 30, 17May 15, 18Not available
9840352 Reusable envelopeMay 31, 16Dec 12, 17Not available
9809049 Tablet with interconnection featuresJul 28, 14Nov 07, 17COMSERO, INC.
9779637 Board describing or showing reality in four dimensions, a universal plotter and a scientific measurement and learning toolFeb 10, 16Oct 03, 17Not available
9747810 Magnetic display including quick-release mechanismFeb 03, 12Aug 29, 17REQUISITE SOLUTIONS INCORPORATED
9359111 Reusable envelopeSep 19, 14Jun 07, 16Not available
9302818 Reusable envelopeMar 27, 14Apr 05, 16Not available
9189981 Display method, film and display device using magnetic particlesFeb 07, 13Nov 17, 15NANOBRICK CO., LTD.
9168566 Process for producing a projection blackboardMar 25, 13Oct 27, 15JFE METAL PRODUCTS & ENGINEERING INC.
9162516 Display board assemblyMar 07, 13Oct 20, 15ACCO BRANDS CORPORATION
9044995 Reflection frame-equipped sheetJan 16, 12Jun 02, 15HITACHI SOLUTIONS, LTD.
8931530 Interactive board coverJan 30, 12Jan 13, 15Tequipiment, Inc.
8870061 Reusable envelopeMay 15, 13Oct 28, 14Not available
8827461 Image generation device, projector, and image generation methodFeb 17, 12Sep 09, 14SEIKO EPSON CORPORATION
7303806 Combination writing board/reflecting screen sheetNov 06, 00Dec 04, 07IZUMI-COSMO COMPANY, LIMITED, KIMOTO CO., LTD.,
4536163 Mechanism for vertically movably supporting a board member on a wallOct 26, 83Aug 20, 85WEYEL INTERNATIONAL GMBH