"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7168209 | Roof wall coping system and method A coping system includes a cleat mountable on a wall, a splice plate mountable over the cleat and a coping cap mountable to the cleat that is held in place by a spring between the cleat and the coping cap. In general, both the cleat and the coping cap have approxima... | 01/30/2007 |
| 6745537 | Modular wall or fence construction system A modular wall or fence construction system includes at least first and second I-profile blocks, each having an I-shape in planform. The I-shape defines a parallel pair of flanges across opposite ends of a web extending between the flanges. The I-profile blocks have... | 06/08/2004 |
| 6688058 | FASTENER ASSEMBLY SERVING AS A PRODUCT, OR COMBINED WITH OTHER COMPONENTS AS A PRODUCT, ALLOWS AUTOMATIC CONTROLLED MOVEMENTS IN ONE DIRECTION AND PREVENTS MOVEMENTS IN THE OPPOSITE DIRECTION WHEN FORCES ARE APPLIED A fastener assembly 10, in respect to forces which are subsequently applied, after the installation thereof, when forces is applied in one direction, this fastener assembly 10 is self adjusting incrementally, as needed in travel or actuation; yet when a f... | 02/10/2004 |
| 6560938 | Box lintel A box lintel includes an elongated, hollow metal form with a lower wall, integrally formed side walls extending upwardly therefrom, and integrally formed partial upper walls extending inwardly from the side walls. A method of fabricating a box lintel is a... | 05/13/2003 |
| 6374556 | Concrete elevation assembly, hollow concrete block, and method of making In a method for forming a block having a core, the core is formed in a vertical orientation, providing for increased control of wall thickness. The block has a projection on one surface and a groove on an opposing surface. The block core is disposed paral... | 04/23/2002 |
| 5878544 | Stabilizing system for concrete poured walls within foam block forms An improved stabilizing system for a poured concrete wall utilizing interlocking foam blocks disposed on a foundation. The improved stabilizing system comprises a plurality of reinforcement members. The first ends of the reinforcement members are secured ... | 03/09/1999 |
| 5713161 | Noise-protection screen A noise-protection screen (1) provided with a number of sound-damping elements (2) and over the length of the noise-protection screen, spaced at a distance from each other with girders for the support of the elements, and a sound-damping element for a noi... | 02/03/1998 |
| 5189860 | Construction systems and elements thereof Construction elements of predetermined cross-sectional and end profiles are formed. These construction elements are useful in building construction. Included in an I-shaped element, a corner/connecting block and a D-shaped profile material. In addition, e... | 03/02/1993 |
| 5138808 | Masonry block wall system and method A masonry block system is disclosed incorporating a plurality of courses of masonry block, each block of which is formed with minimum webbing to minimize heat flow therethrough. The wall system is formed into a unitary structure through the utilization of... | 08/18/1992 |
| 5022211 | Construction systems and elements thereof Construction elements of predetermined cross-sectional profiles are formed of wood, plastic and/or metal. These construction elements are useful in building construction, preformed panel systems and preformed truss structures. The shapes of the constructi... | 06/11/1991 |
| 5007218 | Masonry block wall system and method A masonry block system is disclosed incorporating a plurality of courses of masonry block, each block of which is formed with minimum webbing to minimize heat flow therethrough. The wall system is formed into a unitary structure through the utilization of... | 04/16/1991 |
| 4841707 | Composite double or multiple wall In the construction arrangement of building composite double or multiple walls, two or more load-bearing walls are built together by means of panels which are prefabricated of concrete or other strong hardenable material and of noncorrodible molds of vari... | 06/27/1989 |
| 4817356 | Construction systems and elements thereof Construction elements of predetermined cross-section profiles are formed of wood, plastic and/or metal. These construction elements are useful in building construction, preformed panel systems and preformed truss structures. The shapes of the construction... | 04/04/1989 |
| 4703602 | Forming system for construction A forming system for construction includes thin shell concrete block elements and connecting tie members which can be assembled into forms of various shapes and sizes to receive poured concrete. The block elements are dimensioned and configured to be prod... | 11/03/1987 |
| 4545860 | Battery of coke ovens and a method for repairing them A construction for a battery of coke ovens and to a method for repairing m in which a continuous vertical joint plane is provided in the walls of the piers separating the ovens of the batteries, which walls are constructed of courses and headers and stre... | 10/08/1985 |