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Application filed by Friedrich FaiglefiledCriticalFriedrich Faigle
Publication of CH63168ApublicationCriticalpatent/CH63168A/de
CH63168A1912-08-211912-08-21Nah- und fernwirkende Signalvorrichtung zur Ermittlung der Geschwindigkeit von Fahrzeugen und stationären Maschinen
CH63168A
(de)