Time information print out at a preselected condition in an electronic calculator
US4283769A · kind A · utility
19Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1979 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Mar 7, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/0233
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A printer calculator includes a time information keeping circuit for storing current time information. A state detection means is provided in the printer calculator for printing out the current time information stored in the time information keeping circuit when a preselected state occurs in the printer calculator. The state detection means can be responsive to, for example, actuation of a particular key included in a keyboard panel of the printer calculator, and/or initiation of power supply to the printer calculator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.