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"We are probably nearing the limit of all we can know about astronomy."
Simon Newcomb, astronomer ; 1888
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| Number | Title | Issue Date |
| 6496112 | Radio frequency identification tag with a programmable circuit state A radio frequency identification tag (16) includes stored tag information (56) and at least one antenna element (30). The tag also includes a programmable tag circuit state that is either "on" or "off" based on an "on/off" command signal (35) received by ... | 12/17/2002 |
| 6404339 | Radio frequency identification tag arranged with a printable display A radio frequency identification tag system (10) utilizes a radio frequency identification tag (16) that includes a display (40). The display has an electrooptic display (458) sandwiched between a first display electrode 454 and an optically transparent s... | 06/11/2002 |
| 6353393 | Switch status monitoring system A switch status monitoring system (10) includes a switch signal processor (16) that operates in either of a supervised mode or an unsupervised mode for each monitored switch (12). Selection of the operating mode is made via configuration data provided to ... | 03/05/2002 |
