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["Produkt","Preis",null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,28.75,"Günther Mumme @ GMG-CC.de","19.12.2012 23:01"]
["Festplatte",127.5]
["USB-Stick",10.3]
["Keyboard",27.65]
["Monitor",211.95]
["Maus",7.99]

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["Änderungen"]
["Produkt","Alter Wert","Neuer Wert","Geändert von","Datum | Zeit"]
["Maus",8.3000000000000007,7.99,"Günther","06.06.2015 | 14:33"]
["USB-Stick",12.8,10.3,"Günther","06.06.2015 | 14:35"]