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Building and Engineering Contractors of Mill Hill, London, NW7.
1848 Company established.
1937 Building and engineering contractors. 
1971 Decline in interest in use of system building, something which most of the large contractors used for public sector projects such as housing
1974 Joined a consortium with the Societe des Grands Travaux de Petroliers Maritimes to produce a flotation collar for offshore oil platform tender in 1977.