Group by: Item Type | No Grouping Jump to: Patent Number of items: 4. PatentCouncil of Scientific and Industrial Research (1989) An improved alkaline primary battery cell. 164706. Council of scientific and industrial research (1978) A process for the preparation of solid ammonium persulphate. 143772. Council of Scientific and Industrial Research (1969) Improvements in or relating to automatic battery testing gadgets. 111927. Council of Scientific and Industrial Research (1968) A new anode design for use in primary wet cells. 110875. |