The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7198325 | Adjustable piece of seating furniture Piece of seating furniture, such as an armchair, includes a basic body on which a seating area is provided. Armrests, such as left and right armrests, are disposed laterally of the seating area. The armrests may be adjusted from a seating position into a lying posit... | 04/03/2007 |
| 7146351 | System and method for analyzing software components using calibration factors Calibration factors determine how topograpy components are designed and built in order to support the management philosophies and methodologies. A marketing analysis may be used to identify the calibration factors that are needed to support a large market. In this m... | 12/05/2006 |
| 7145604 | Method and device for determining the spacing between a first and a second signal sequence In a method and device for determining the spacing between first and second sequences of signal values, first and second successive signal values of the first sequence have assigned thereto a third signal value of the second sequence, the third signal value being lo... | 12/05/2006 |
| 7127954 | Method and device for measuring the flow rate of a fluid A method for measuring the flow rate of a fluid flowing in a conduit includes separating the fluid into two portions then flowing into two branches (20, 22). Both portions are then recombined in an outlet manifold (14). A difference is created between ... | 10/31/2006 |
| 7050112 | Method and device for displaying at least two images within one combined picture A device for processing a first video signal and a second video signal that contain image data which overlap within a combined picture includes a processing element and a controller. The processing element receives the first video signal containing first image pixel... | 05/23/2006 |
| 6973449 | System, method of portable USB key interfaced to computer system for facilitating the recovery and/or identification of a missing person having person's unique identification, biological information A system, method, and software for facilitating the identification and recovery of missing persons. In one aspect, the invention is a system comprising a portable device comprising a computer memory medium and means for interfacing with a computer system having a di... | 12/06/2005 |
| 6934924 | Layout methodology and system for automated place and route A new simple novel Layout methodology for high integration VLSI chip is proposed, which is reduced dramatically the complexity, the cost and the schedule for implementing a complex chip such as System On a Chip (SOC) that required hierarchical layout implementation.... | 08/23/2005 |
| 6925444 | System and method for creating and sharing purchasing lists on a network A system and method create and share purchasing lists in a network system. The system and method utilize a consumer user interface. The consumer user interface provides the consumer the ability to create a purchase list by receiving advertisement data on the consume... | 08/02/2005 |
| 6904628 | Convertible sofa-bed A sofa-bed has: a frame with opposing arms; a seat; a subseat hinged to the seat; a connecting rod that pivotally interconnects the subseat and the backrest; pairs of center legs and end legs pivotally attached to, respectively, the subseat and seat; and mechanisms ... | 06/14/2005 |
| 6678904 | Hinged link mattress deck A support deck for a sofa bed having a plurality of support members is interconnected at joints such that when a force is applied to one side of the deck the deck will yield but when a force is applied to the opposite side, the deck will be relatively res... | 01/20/2004 |
| 6101769 | Earthquake resistant bed A structure for housing a bed, for protection of a sleeper against serious injury or death from damage or collapse of the surrounding residence in an earthquake. The bed protection structure has two kinds of for this purpose: various structural integrity ... | 08/15/2000 |
| 6035464 | Folding sofa bed frame structure with two-position TV headrest An arrangement for supporting, inclining, and reclining a rear section of a folding bed frame structure of a sofa bed includes a rear bed section; an intermediate bed section pivotally connected to the rear bed section; a slide link extending between and ... | 03/14/2000 |
| 5893182 | Combination item of furniture and foldable sleeper bed A combination ottoman, table or desk and a foldable sleeper bed comprises upper and lower wooden frame sections, the lower frame section being configured as an open top box, atop which the upper frame section is located. The two frame sections are interco... | 04/13/1999 |
| 5855030 | Folding sofa bed frame structure with two-position TV headrest A folding sofa bed frame structure has a TV control link and an associated toothed ratchet element connected thereto, by which the rear end section of the structure can be selectively positioned in two differing "TV" positions. A cam portion on the ratche... | 01/05/1999 |
| 5493740 | Sofa-bed having an articulated folding structure A sofa-bed having an articulated folding structure comprises a fixed carrying framework (2) to which a main movable frame (3) is engaged through a pantograph linkage (4), which main frame is movable in a vertical direction. Consecutively and rotatably con... | 02/27/1996 |
| 5329654 | Furniture system A sofa system includes a unitary perimetric baseframe including a front panel, a rear panel and opposing side panels. The system also includes a hollow back portion having front and rear edges and an integral internal rigid frame, the back portion rotatio... | 07/19/1994 |
| 5295275 | Convertible sofa bed system A convertible sofa bed system includes a sofa seat with a convertible sofa bed in which the seat is rotationally connected to the top of a front panel of the sofa. Prior to unfolding of the bed portion of the sofa bed system, the sofa seat may be rotated ... | 03/22/1994 |
| 5231710 | Convertible sofa-bed A convertible sofa-bed which includes a bed support frame which is shiftable with respect to the sofa frame to convert the sofa-bed between sofa and bed positions. The bed support frame is attached to one of the arm supports and is extended into a bed pos... | 08/03/1993 |
| 5129113 | System of fabric covering A fabric covering system for use with a hinge element of a convertible sofa bed a system includes a sofa base and sofa cushions having rigid bottom rotatably connected by hinge means to the top of a vertical front panel of a sofa. The fabric of the cushio... | 07/14/1992 |
| 4860393 | Convertible chair for either sitting or lying A piece of furniture convertible from a chair to a cot and vice versa comprising connected inner and outer carriages which can telescope out of a frame from a chair position within the frame to a cot position outside the frame and having a head cushion hi... | 08/29/1989 |
| 4509216 | Sofa bed mechanism In a sofa bed mechanism which includes a foldable bed frame, a support member on which the bed frame is movably supported, a linkage assembly operable to govern movement of the bed frame and a control member for guiding movement of the mechanism into and ... | 04/09/1985 |
| 4335475 | Composite lounge chair structure A bed-convertible composite lounge chair comprises a base body whereto a backrest is removably associated in such a way as to define a structural framework. In the base body a cavity is formed housing a collapsible bedspring, a covering being laid on the ... | 06/22/1982 |
| 4212090 | Ottoman convertible An ottoman convertible having a base, lower cushion and upper cushion. As an ottoman, the lower and upper cushions are stacked on top of the base. When the unit is assembled as a bed, the upper cushion is placed directly on the base while the lower cushio... | 07/15/1980 |
| 4032999 | Sofa bed A furniture assembly such as a sofa bed which moves between a sitting configuration and a bed configuration including a metal support frame having end units with interconnecting beam members removably connected to the end units by bolts. A metal plate is ... | 07/05/1977 |