Group by: Item Type | No Grouping Jump to: Patent Number of items: 3. PatentCouncil of Scientific and Industrial Research (1977) Improvements in or relating to inhibition of corrosion of steel in cooling water systems. 142142. Council of Scientific and Industrial Research (1973) A new formulation of pickling inhibitors for steel in acid solutions. 130060. Council of Scientific and Industrial Research (1969) Improvements in or relating to chemical phosphating of iron and steel surface. 113592. |