Elektrische + elektronische Batterie - Grossuhren : Prinzip - Funktion - Reparatur. - Schmidlin, Franz (Lausanne : Scriptar S.A., 1972)
textbook electric clocks
Keywords: Clocks and watches, Electric -- Repairing; Clocks and watches, Electric -- Design and construction; Clock (general); Scriptar; Schmidlin Franz; textbook electrical advanced theory