Number | Date | Country | Kind |
---|---|---|---|
298 05 523 U | Mar 1998 | DE |
Filing Document | Filing Date | Country | Kind | 102e Date | 371c Date |
---|---|---|---|---|---|
PCT/DE98/02347 | WO | 00 | 12/2/1999 | 12/2/1999 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO99/49367 | 9/30/1999 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
4757484 | Pardo | Jul 1988 |
Entry |
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Database Inspec Institute of Electrical Engineers, Stevenage, GB, Inspec No. 753277, J Journal Calendar System and Astronomy of The Maya People. Schalen C., Astronomisk Tidsskrift, 1974, Sweden, ISSN 0004-6345, vol 7, NR 3, pp. 103-108. |