Rockwell Acquisition of Lamson Industries Calculating Machine Subsidiaries
Modern Data, November, 1973

Rockwell International acquired the three subsidiaries of Lamson Industries, Ltd. of London, England, related to the development, manufacturing, and distribution/sales of calculating and computing devices. Lamson Industries was a large conglomerate that was the parent of quite a number of diversified businesses. Among these were Sumlock Comptometer, Ltd., Sumlock Anita Electronics, Ltd., and Ruf Organization, Ltd. Sometime in early 1973, a proposal was floated for US conglomerate Rockwell International to acquire these calculating machine companies from Lamson Industries. In the fall of 1973, the acquisition was completed, and these companies became part of Rockwell International.