| http://www.w3.org/ns/prov#value | - A washing machine according to claim 12, wherein the water softening device comprises a flow-through capacitor comprising: (a) ???n??? plates comprising a conductive surface and chargeable in response to an applied DC potential, and (b) ???n???1??? non-conductive spacers to separate said plates from each other, wherein n is a positive integer, n being at least 2. 14.
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