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NICOLAS HOURKO
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NICOLAS HOURKO
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Application filed by NICOLAS HOURKOfiledCriticalNICOLAS HOURKO
Application grantedgrantedCritical
Publication of FR353810ApublicationCriticalpatent/FR353810A/fr
G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
G04G9/10—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR353810D1905-04-291905-04-29Système d'indication lumineuse des heures
ExpiredFR353810A
(fr)