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| US4468841 | 30 Sep 1982 | 4 Sep 1984 | | Clamp for use with a clipboard or the like |
| US5058242 | 14 Aug 1990 | 22 Oct 1991 | | Pen holder for a clip-board |
| US6305656 | 3 Dec 1999 | 23 Oct 2001 | Dash-It USA Inc. | Magnetic coupler and various embodiments thereof |
| US6760956 | 5 Mar 2002 | 13 Jul 2004 | Edmond Ken Lee | Putter towel clip |
| US6971616 | 22 Sep 2003 | 6 Dec 2005 | | Clipboard |
| US7648130 | 8 Jun 2006 | 19 Jan 2010 | Research In Motion Limited | Use of magnets to provide resilience |
| USD586060 | 16 May 2008 | 3 Feb 2009 | | Paint brush holder |
| USD601631 | 5 Jun 2008 | 6 Oct 2009 | Staples The Office Superstore, LLC | Clipboard |
| USD602090 | 5 Jun 2008 | 13 Oct 2009 | Staples The Office Superstore, LLC | Clipboard |
| USD656546 | 5 Jun 2008 | 27 Mar 2012 | Staples The Office Superstore, LLC | Clipboard |
