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 167,710 pages of information and 247,104 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.

Neophone Engineering Co

From Graces Guide
1929. British Industries Fair catalogue.

of 9-10 Little Saint Andrew Street, St. Martin's Lane, London, WC2. Telephone: Gerrard 6725

1928 Patent - Improvements in or relating to diaphragms for loud-speakers and the like.

1929 British Industries Fair Advert for Vulcanite Cone-diaphragm. Also Wireless Receiving Sets; Components; Cabinets; Eliminators, etc. Manufacturers of Wireless Sets, Loud Speakers. Patentees of the Neophone Seamless Vulcanite Cone-diaphragm. Quality of reproduction in sets and loud speakers a speciality. (Wireless Section - Stand No. MM.59) [1]


See Also

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Sources of Information

  1. ↑ 1929 British Industries Fair Advert 244 and p124
  • [1] Wikipatents
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