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G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
G04G9/04—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
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FR805123A1959-09-151959-09-15Procédé et dispositif pour la réalisation d'un indicateur pas-à-pas
ExpiredFR1244392A
(fr)