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 |
| 7987202 | Contemporaneously sharing resources targeted by a library Computer-readable media, computerized methods, and computer systems for acting on properties of multiple resources, which span disparate locations within a network, upon detecting an intuitive user-initiated operation are provided. Initially, a library is provided t... | 07/26/2011 |
| 7624307 | Operations engine error handling A file operations engine is provided that manages many user interactions with their files via a computer system. The operation engine may place certain classes of errors in an error queue while performing a requested operation without waiting for a user to satisfy t... | 11/24/2009 |
| 6753885 | System and theme file format for creating visual styles A method of specifying a visual style for a set of graphical components is provided for use on a computer system having a graphical operating environment. The method includes providing a schema file of available graphical components for which a visual style can be c... | 06/22/2004 |
| 6748445 | System and method for exchanging data A system and method are provided for exchanging data at irregular intervals between a sender and a receiver. The sender transmits to the receiver reports containing subject data along with information regarding the next interval at which subject data will be transmi... | 06/08/2004 |