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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US517252517 Dec 199122 Dec 1992Folding and telescoping sports shelter
US519009018 Jun 19912 Mar 1993Toy door assembly
US55113488 Oct 199130 Apr 1996Steelcase Inc.Furniture system
US554487019 Aug 199413 Aug 1996Fisher-Price, Inc.Play enclosure apparatus
US570661317 Aug 199513 Jan 1998Fisher-Price, Inc.Playhouse with pivotally attached seats
US572477825 May 199510 Mar 1998Steelcase Inc.Furniture system
US60660226 Feb 199823 May 2000The Little Tikes CompanyCollapsible activity center
US613484424 Jun 199724 Oct 2000Steelcase Inc.Method and apparatus for displaying information
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US692294918 Apr 20032 Aug 2005Steelcase Development CorporationFurniture system
US707014919 Sep 20014 Jul 2006Advanced Product Development, LLCSeats that convert to sleeper bunks
USD39607011 Jul 199714 Jul 1998Meyer/Glass Design, Ltd.Garden playset with panels for decoration
USD4037186 Feb 19985 Jan 1999The Little Tikes CompanyChild's activity center
USD54492615 Jun 200619 Jun 2007Indoor playhouse for children