Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 149,267 pages of information and 234,239 images on early companies, their products and the people who designed and built them.
1945 Secondary radar for air traffic control became a key area of development for Cossor.
1947 The chairman claimed the company was the only one anywhere in the world to concentrate on developing civilian radar
1948 Radar Control at Douglas Harbour, I.O.M.
1949 Supplied marine radar to a number of shipping companies
1949 Due to over expansion of the company had to close the Chadderton factory<ref>The Times Sept. 23, 1949</ref
Presumably later Cossor Radar and Electronics