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| Number | Title | Issue Date |
| D640734 | Ergo calculator | 06/28/2011 |
| D633134 | Calculator lid | 02/22/2011 |
| D538327 | Bridge calculator | 03/13/2007 |
| D513035 | Calculator | 12/20/2005 |
| D509238 | Electronic calculator | 09/06/2005 |
| D508520 | Electronic calculator | 08/16/2005 |
| D501871 | Body mass index calculator | 02/15/2005 |
| D493190 | Body mass index calculator | 07/20/2004 |
| 4939514 | Foldable data collecting and processing device A foldable data collecting device includes a first case and a second case mutually connected in a foldable manner, and a plate hinged between the first case and the second case by an opening/closing support. A sheet-like keyboard is disposed on the surfac... | 07/03/1990 |
| 4916441 | Portable handheld terminal A handheld pocket terminal (22) having a display screen (40) and a bar code reader (42).... | 04/10/1990 |
| 4662518 | Lotta luck lottery kit The invention is designed to use with lottery tickets. It includes a container to hold at least ten lottery tickets. The container houses a scraper designed to remove the coating from the tickets, a protective lip which covers the "void if removed" sectio... | 05/05/1987 |
| 4323979 | Cartridge and bezel assembly for a calculator An electronic calculator utilizing a programmable read-only memory (PROM) cartridge for control of a number of the calculator functions is provided with a bezel which is snap-fit into a keyed opening in the calculator housing and guides a connector on the... | 04/06/1982 |
