Grace's Guide To British Industrial History

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Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,711 pages of information and 247,105 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Ozonair: Difference between revisions

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See [[Edward Lionel Joseph]]
See [[Edward Lionel Joseph]]
1911 The Ozonair system of ventilation was being installed over the whole of the [[Central London Railway]] (sic) - in the tunnels<ref>The Times  July 26, 1911</ref>


1912 Apparatus for air purification.
1912 Apparatus for air purification.

Revision as of 15:53, 30 November 2022

February 1931.
October 1952.

of 96 Victoria Street, Westminster, London.

See Edward Lionel Joseph

1911 The Ozonair system of ventilation was being installed over the whole of the Central London Railway (sic) - in the tunnels[1]

1912 Apparatus for air purification.

See Also

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Sources of Information

  1. ↑ The Times July 26, 1911
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