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Priority to FR7242747ApriorityCriticalpatent/FR2209263B3/fr
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Publication of FR2209263B3publicationCriticalpatent/FR2209263B3/fr
H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
H04B10/112—Line-of-sight transmission over an extended range