Horometric arrangement for indicating the position of the planets
US4825426A · kind A · utility
5Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Sep 3, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B27/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the arrangement of this invention the position of the planets is displayed by means of a disc and rings concentric thereto, the display surfaces of which are arranged substantially in the same plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.