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of Fitzroy Street, London
1814 A general printing business was formed by John Haddon (which became John Haddon and Co)
1938 Private company formed: Tungstone Products.
1953 Company made public and named changed.
1958 Public sale of shares in the company which had 2 parts:
1961 Engaged as incorporated practitioners in advertising; manufacturers of metal plates for process and photo engraving; accumulator and battery manufacturers; nut manufacturers for the motor and engineering trades; general woodworkers; metal refiners and lead reclamation. 500 employees.
1968 The management of the John Haddon advertising agency bought the company from London Merchant Securities
By 1970 was part of Carlton Industries; Tungstone made the largest increase and contribution to Haddon Group's profits; Tungstone was one of 2 battery interests owned by Carlton; Haddon also had a subsidiary Samuel Marsden which was involved in nuts and bolts, as was Vislok