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Publication of FR442689ApublicationCriticalpatent/FR442689A/fr
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F13/00—Illuminated signs; Luminous advertising
Landscapes
Physics & Mathematics
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Engineering & Computer Science
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Theoretical Computer Science
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FR442689D1911-03-181912-03-15Perfectionnements apportés aux appareils de commande à utiliser pour obtenir des actions périodiques
ExpiredFR442689A
(fr)