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Millivoltmeterog. Millivoltmeter MV fr Wechselspannung der Firma Grundig AG own Oguenther at org de Oguenther de px Oguenther Original upload log de Boteas CommonsHelper page de Millivoltmeterog Oguenther bytes no Information Millivoltmeter MV fr Wechselspannung der Firma Grundig AG selber fotografiert Bildfrei