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 142,972 pages of information and 229,026 images on early companies, their products and the people who designed and built them.

United Water Softeners

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1918.
March 1921.
1926.
1926.
1926.
1926.
1926.
January 1928. Permutit.
February 1928.
1931.
1933. Electro Chemical Dosing Gear.
1933. Base Exchange Industrial Water Softener.
1936.

of Imperial House, Kingsway, London, W.C.2., works at Brentford.

1913 Company formed by merger of Lassen and Hjort and Water Softeners Ltd, sole proprietors of Permutit base exchange medium.

1917 Agents for Wallace and Tiernan.

1918 Agent for Lassen-Hjort and Permutit water softening plant (see advert).


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