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 133,393 pages of information and 211,464 images on early companies, their products and the people who designed and built them.


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of Craven House, 121 Kingsway, London, WC2. Telephone: Holborn 7731-2. Cables: "Burovox, Westcent, London"

  • 1929 Advert in British Industries Fair Catalogue as an Optical, Scientific and Photographic Exhibit. Manufacturers of Loud Speaking Telephones for all purposes, in the Office, Home, Factory, Ships, Mines, etc. Secrecy, Secutity of contact and power of transmission are the outstanding feature of Burovox Equipment (Scientific Section - Stand No. N.8) [1]

See Also


Sources of Information

  1. 1929 British Industries Fair Advert p123 and p32