| http://www.w3.org/ns/prov#value | - These effects, along with previously described arrangement for treating flat surfaces, are shown schematically in FIG. 12a, b and c wherein FIG. 12a shows an arrangement for treating a flat surface, FIG. 12b depicts a rod or tube around which invention electrode arrangement 210 is positioned and FIG. 12c depicts an inside surface such as a pipe or tube inside surface with the invention electrode a
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