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Keywords from Image Description:
Meyers sa. silver extraction extraction d'argens Silbergewinnung Fig Pilzscher Rundofen Fig Lngsschnitt des Treibherdes Fig Querschnitt des Treibherdes Fig Treibherd zum Abtreiben des Bleies Fig Test zum Feinbrennen Fig Test mit Muffel Fig Muffelofen zum Feinbrennen Fig Pattinsonkessel Fig und Zinkdestillierofen Fig Amalgamierpfanne