| 摘要 |
PURPOSE:To greatly increase the range of application of an electronic calculator by forming a store part at the back side of a transparent keyboard of the calculator to store a key digit sheet, a pattern sheet, etc., and attaching a sup port frame also to the back side to set up the calculator respectively. CONSTITUTION:An electronic calculator 1 contains a keyboard part 2 where no key digit is displayed and a store part formed almost on the entire surface of the part 2 and containing an opening part 12a formed at a single edge side of the store part respectively. A character sheet 13 displaying a desired charac ter 14 is set into the store part to form the part 2 containing the character 14. Then a pattern sheet 15 like a photograph, etc., is put on the sheet 13 to form the part 2 containing a desired pattern. While a slendar plate type support frame 16 is attached to the back side of the calculator 1. Thus the calculator 1 is set automatically under a clock display mode when the frame 16 is opened. As a result, the calculator 1 is set up and a clear clock display is secured.
|
