Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,143 pages of information and 233,681 images on early companies, their products and the people who designed and built them.


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A subsidiary of Redifon,

1966 Combined operationally with the other Redifon subsidiary involved in plastics, Glass Fibre Developments Ltd; offered the Laney system for effluent treatment made under licence[1]

See Also


Sources of Information

  1. The Times, Jul 06, 1966