Improvements in or relating to electrolytic treatment of metals more particularly aluminium for increasing the effective surface
907,264. Electrolytically increasing the surface area of metals. PLESSEY CO. Ltd. Sept. 19, 1960 [Sept. 21, 1959], No. 32012/59. Class 41. In electrolytically etching aluminium or other metal foils to increase their surface area a bi-directional current is used having a voltage wave cycle by far the...
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