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The Communication of the Master of the Livonian Branch of the Teutonic Order with the King of Denmark and the Grand Duke of Lithuania during the 15th Century
Verfahren zur Herstellung von Stahlgüssen, welche an einzelnen Theilen der Oberfläche nach dem Innern verlaufend höhere Kohlenstoffgehalte haben, wie die übrigen Theile des Gusses