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Application filed by Rud WerffelifiledCriticalRud Werffeli
Publication of CH71710ApublicationCriticalpatent/CH71710A/de
CH71710A1915-11-161915-11-16Distanzlatte zur genauen Ermittlung des Lattenabschnittes bei optischer Distanzmessung mittelst Fadendistanzmesser
CH71710A
(de)