Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Formation and development of telephone communication in the Ukrainian lands of the Russian Empire in the late nineteenth and early twentieth centuries.
Aufladbare galvanische Zelle mit einer zur Abscheidung von Zink bestimmten ferromagnetischen Abscheidungselektrode und Verfahren zur Herstellung der Ab Scheidungselektrode