Patent US2636311 - ADJUSTABLE TILTING PLATE BOOKSHELF

Patents

Inventors: Thomas B. Tisdale, Thomas B. Tisdale
Current U.S. Classification: 108/9; 108/27

View patent at USPTO
Search USPTO Assignment Database

Citing Patent	Filing date	Issue date	Original Assignee	Title
US4988066	18 Dec 1989	29 Jan 1991		Selectively controlled keyboard support
US5098053	7 Jan 1991	24 Mar 1992		Selectively controlled keyboard support
US7841569	20 Mar 2006	30 Nov 2010	Humanscale Corporation	Keyboard support mechanism
US7841570	21 Oct 2008	30 Nov 2010	Humanscale Corporation	Keyboard support mechanism