Matches in DBpedia 2014 for { ?s ?p Hans Grade (Born in Köslin, May 17, 1879 - ; died October 22, 1946 in Borkheide) was a German aviation pioneer.Hans Grade was an engineer and a German aviation-pioneer. On 28 October 1908 he successfully conducted the first motor-flight over German soil in a motorised triplane aircraft of his own construction at Magdeburg.. }
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- Hans_Grade comment "Hans Grade (Born in Köslin, May 17, 1879 - ; died October 22, 1946 in Borkheide) was a German aviation pioneer.Hans Grade was an engineer and a German aviation-pioneer. On 28 October 1908 he successfully conducted the first motor-flight over German soil in a motorised triplane aircraft of his own construction at Magdeburg.".