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| Number | Title | Issue Date |
| 7134134 | Electronic program guide hardware card An electronic program guide (EPG) hardware card is disclosed. The card is insertable into a television tuning device having EPG capability. A non-volatile memory, such as flash memory, is situated within a case of the hardware card, and has data stored thereon repre... | 11/07/2006 |
| 5489158 | Printer system for removable machine readable code A numbering and reading system with record having two-dimensional erasable bar code or a removable label with a two-dimensional bar code is disclosed. The bar code can be PDF417.... | 02/06/1996 |
| 3943526 | Automatic timekeeping and accounting unit An automatic timekeeping and accounting unit is provided which has particular utility for use by professional persons such as lawyers, accountants, and the like. The unit of the invention keeps track of the person's working activities during the day, and ... | 03/09/1976 |