Council of Scientific and Industrial Research (1981) An improved device for electrolytic etching of aluminium foil using direct current. 148324.

Council of Scientific and Industrial Research (1980) Improved process for the production of dielectric oxide film coated etched aluminium foil for use as anode in high voltage electrolytic capacitor. 148226.

Council of Scientific and Industrial Research (1980) An improved for the removal of chloride ions from an etched aluminium foil for use in aluminium electrolytic capacitor. 148080.

Council of Scientific and Industrial Research (1977) Improvements in or relating to etching of aluminium or its alloy for use as electrode in aluminium electrolytic capacitor. 141250.

Council of Scientific and Industrial Research (1976) Improvements in or relating to electrolytic coloring of aluminium and its alloys for decorative and architectural uses. 140537.

Council of Scientific and Industrial Research (1976) Improvements in or relating to fabrication of solid foil type aluminium electrolytic capacitors. 140220.

Council of Scientific and Industrial Research (1976) Improvements in or relating to etching of aluminium or its alloy for use as electrodes in aluminium electrolytic capacitors. 139702.

Council of Scientific and Industrial Research (1976) Improvements in or relating to drive arrangements for foil materials through continous processing equipment with special reference to the maintanance of constant linear speed. 139258.

Council of Scientific and Industrial Research (1974) Improvements in or relating to heat treatment of etched aluminium and its alloy for use as electrodes in aluminium electrolytic capacitors. 131900.

Council of Scientific and Industrial Research (1969) Improvements in or relating to electrolyte for tantalum electrolytic capacitors. 115204.

Council of Scientific and Industrial Research (1967) Improvements in or relating to etching of tantalum for use in electrolytic capacitors. 103971.

Council of Scientific and Industrial Research (1966) Improvements in or Relating to Etching of Foils of Aluminium or Aluminium alloys for Capacitors. 100313.

Council of Scientific and Industrial Research (1966) Improvements in or Relating to Etching Tantalum. 95423.