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Tidens naturlre fig. Tidens naturlre af Poul la Cour Fig Elektriske Uhre Bogen findes digitalt da Tidens Naturlre Tidens naturlre Nature of time by Poul la Cour Ill Electical clocks The book is digitized at da Tidens Naturlre Tidens naturlre Natur der Zeit von Poul la Cour Abb Elektriske Uhre Das Buch liegt auf org digitalisiert