Norcon
Maker of spun concrete pipes
1942 Bowmaker Ltd acquired Norcon Ltd which was involved in concrete products[1]
1955 Acquired by Bursledon Brick[2]
1957 Demand for its pipes had fallen[3]
By this time was known as Norcon Pipes Ltd
1960 Amalgamated with Sharp, Jones and Co, another maker of concrete pipes[4]