World timepiece
US5007033A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1988 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Dec 15, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/0076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A world timepiece for normally displaying the time of a home city and for selectively displaying the time of another city situated in another time zone. The world timepiece includes a plurality of selector switches corresponding to main cities located in different time-lag zones into which the world is divided. A display unit normally displays the time of the user's home city and, upon actuation of one of the selector switches, the display unit displays the time of the selected city designated by the actuated selector switch. A city of an arbitrary time-lag zone can be stored in an assigned city storage circuit, and the time of the assigned city can be displayed by the display unit by actuating an optional switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.