"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 |
| 7316086 | Occupancy sign for bathroom stall A sign for use with a restroom stall having a mounting plate that is detachably mounted to the inner surface of the bathroom stall. Connected to and extending from the mounting plate is a flexible or rigid cord. Connected to the opposite end of the flexible or rigid... | 01/08/2008 |
| 6967450 | Moving banner display improvements Enhancements for moving displays in general, and in particular, dynamic signage and kinetic sculpture. More specifically, the present invention relates to improvements on moving banners (18) for use within entertainment, advertising, signage, art, theater, pe... | 11/22/2005 |
| 6935196 | Method and apparatus for testing the structural integrity of offshore lifting containers An apparatus and method for load testing lifting containers and their related cable slings using a hydraulic jacking arrangement located within the container itself for equalized stress loading of the container and its cable slings and lifting eyes under various pre... | 08/30/2005 |
| 6240666 | Inflatable information carrier An information carrier for receiving at least one information data. The information carrier includes an inflatable hollow body made of a flexible, foldable material and a blower for blowing an air flow into the inner part of the hollow body. The blower is... | 06/05/2001 |
| 5561931 | Publicity display A publicity display includes a central tubular mast and a plurality of transversal tubes each having one end fixed to the central tubular mast and a free end projecting radially from the central tubular mast. The upper ends of a pair of vertical support t... | 10/08/1996 |
| 4412396 | Sign holder with reversible supporting brackets A sign holder having at least one support post over which turnoverable square shaped sign supporting frames are placed, each frame being secured to the post by an adjustable screw threaded through appropriately placed threaded holes on each supporting fra... | 11/01/1983 |
| 4242822 | Removable sign post holding apparatus A removable sign post holding apparatus including a body portion having a post-receiving opening, a plurality of retaining members disposed around the periphery of the body portion, the retaining members extending along the length of the body portion from... | 01/06/1981 |
| 4235034 | Removable sign post holding apparatus A removable sign post holding apparatus including a body portion having a post-receiving opening, a plurality of ground-engaging sections extending downwardly from the periphery of the body portion, a connector section extending outwardly from the said bo... | 11/25/1980 |
| 4084338 | Vehicle-top sign display assembly A vehicle-top sign display assembly which is constructed to support a pair of signs in arched back-to-back relation. The assembly includes a pair of corner supports which accommodate opposite vertical edges of the signs in sandwich relation with a pair of... | 04/18/1978 |