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"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 5153577 | Mapping character color attributes into grey pixel patterns An emulator emulates a processor that provides a display in which each character is presented in a foreground color on a background color. The emulator maps the foreground colors and background colors into gray pixel patterns for display, with the foregro... | 10/06/1992 |
| 5008853 | Representation of collaborative multi-user activities relative to shared structured data objects in a networked workstation environment A multi-user collaborative system in which the contents as well as the current status of other user activity of a shared structured data object representing one or more related structured data objects in the form of data entries can be concurrently access... | 04/16/1991 |
