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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7228597 | Partition apparatus and hinge apparatus A partition apparatus or system having one or more panels each releasably fixed with respect to a hinge element. The hinge element has at least one hinge leaf, each with an outer edge. Each hinge leaf has at least one opening, preferably multiple openings, extending... | 06/12/2007 |
| 7128124 | Adjustable tension shade assembly The adjustable tension shade includes a spring motor, an axle, and a shade roller. The spring motor is mounted to the axle and drives the shade roller. The axle has an adjustable telescoping shaft and the free ends of the axle are spring-biased outwardly away from e... | 10/31/2006 |
| 7105057 | Adjustable paint guard for door frames An adjustable paint guard for filling the opening of a door frame so that one side of the door frame can be quickly painted without having paint strike the other side of the door frame includes a multi-panel nested arrangement wherein at least one panel serves as th... | 09/12/2006 |
| 6015003 | Sectional overhead door construction A sectional overhead door construction utilizing articulated panels with a unique pinch-free interlocking system for connecting the lower edge of the panel with the upper edge of the panel therebelow utilizing a slotted configuration for greatly facilitat... | 01/18/2000 |
| 5272840 | Security gate with walk through feature A gate is provided for use as a closure device within a doorway and includes an L-shaped frame member which may be positioned in stationary relationship to the doorway and a panel member which is pivotally mounted to the frame member. The panel member car... | 12/28/1993 |
| 4831777 | Adjustable width doorway safety gate apparatus Adjustable width doorway safety gate apparatus comprising two gate segments, one segment of which is laterally slidable on the other or hinged gate half segment, and the gate half segments having tongues and grooves and held in lateral sliding position by... | 05/23/1989 |
| 4783111 | Visor A pair of visor mounting brackets include spring clips which cooperate with the pivot axles of a visor to selectively urge the visor toward a raised stored position and hold it in such position. The visor in a preferred embodiment includes a pair of panel... | 11/08/1988 |
| 4749018 | Sectional door for buildings and the like A sectional door, for buildings and the like, includes panel-like sections that are hingedly or pivotably connected to one another. The hinge joints that provide the pivotal connection have securing plates or brackets that extend around the pivot or hinge... | 06/07/1988 |
| 4492263 | Infant security door gate assembly An infant security door gate is adapted for releasable disposition between opposed sides of a doorway and comprises upper and lower expansible support bars which are telescopingly adjustable to conform to the space between the sides and at the same time a... | 01/08/1985 |
