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Number of items: 3.
Patent
Council of Scientific and Industrial Research (1974) Improvements in or relating to the spangle finish on tinned steel. 133404.
Council of Scientific and Industrial Research (1967) Improvements in or Relating to the Chemical Polishing of Copper and its Alloys. 101925.
Council of Scientific and Industrial Research (1966) Improvements in or relating to the electrodeposition of black chromium plating. 97005.
