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| Number | Title | Issue Date |
| 6947351 | Watch equipped with means for determining a location longitude The invention concerns a watch equipped with means for determining a location longitude and a device for determining the sun's altitude above the horizon. Said watch comprises a mobile element (16) doing one full rotation in 12 hours and bearing a hour hand (... | 09/20/2005 |
| 6275449 | World clock with synchronous display A world clock includes a map with markings arranged to indicate time zones for actual geographic locations and a single-row table having 24 columns for correlating the markings with hour markings on a belt. The belt is driven by a controller to move one c... | 08/14/2001 |
| 4972392 | Time conversion clock A time conversion universal clock includes a time conversion transmission mechanism having one output connected with a time recording element, and another output coupled with a universal time zone map, so that the time recording element drives the univers... | 11/20/1990 |
| 4308604 | Globe clock A clock for indicating the different times at different places in the world, comprises a globe and a dial ring rotatable in an annular groove formed around the inside of the globe at its equatorial region. The dial ring is rotated around the globe by a cl... | 12/29/1981 |
| 4307458 | Watch for displaying multiple world times The watch has a component in which a plurality of different times corresponding to different world time zones are displayed simultaneously. In one embodiment, the times are designated on an endless belt which is moved in increments under a window. In anot... | 12/22/1981 |
