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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 7431325 | Steering adapter for motor vehicles The steering wheel adapter for a motor vehicle has, for connection to a steering wheel, a rotatable retaining plate (10) with at least three retaining elements (11, 12, 13) that are displaceable within a circular segment formed by the upper region of t... | 10/07/2008 |
| 7293368 | Measurement system and method An apparatus and method are provided for accurately recording measurements of a window and producing accurate window treatments. A reference strip is provided having measurement indicia thereon, such as a checkerboard pattern of squares of predetermined sizes. The r... | 11/13/2007 |
| 6973736 | Tile contour tool An apparatus for tracing a contour onto a tile prior to cutting the tile includes a base member having a first longitudinal slot and a retaining lip disposed at one end thereof. A first extension member includes a second longitudinal slot and is pivotally attached t... | 12/13/2005 |
| 6954990 | Angle measuring device A measuring device is provided for carpenters, roofers and other tradesmen. The device is made of relatively lightweight plastic and has a variety of uses. The elongated base is rectangular in cross sectional and includes a scale for measuring distances along one si... | 10/18/2005 |
| 6138368 | Sprinkler head leveler The present invention is directed to a sprinkler head leveling for ensuring that the longitudinal axis of a sprinkler head assembly is substantially vertically aligned. The sprinkler head leveler uses a hollow cylindrical base which slides over the sprink... | 10/31/2000 |
| 5937371 | Inclinometer with dual scales and parallel gauging surfaces An inclinometer for providing two different, direct readings corresponding to the angle of inclination of a worksurface includes a pair of parallel gauging surfaces engageable with the worksurfaces in first and second distinct positions. The inclinometer ... | 08/10/1999 |
| 5113595 | Dart board positioning device The invention provides a method and a device for positioning a dart board and an associated throwing line (hockey) without reference to the slope of the floor or the verticality of the wall (on which the board is mounted), or on the planarity of either. T... | 05/19/1992 |
| 5092057 | Locating and leveling tool A tool for locating a pair of points on a horizontal line at a desired distance from a reference point is disclosed including an elongated body carrying a pair of slidable selectively positonable spaced apart locator members and a scale for indicating the... | 03/03/1992 |
| 4535541 | Device for measuring guide alignment for mine shafts and the like A guide alignment measuring device for mine skips, cages, elevators and other conveyance systems. The device measures misalignment of one or more guides used in vertical shafts or incline shafts in various types of mining operations, elevator shafts and s... | 08/20/1985 |
| 4335521 | Method and apparatus for geographic location This invention is directed to a method of determining and recording an indeterminate sequence of distance/direction coordinates in a manner that permits the user or some other person to subsequently retrace the coordinates. Apparatus is disclosed to enabl... | 06/22/1982 |
