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 142,963 pages of information and 228,875 images on early companies, their products and the people who designed and built them.

Park Royal Scientific Instruments

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of 116 Victoria Street, London, Sw1. Telephone: Victoria 5474. Works: 52 Minerva Road, Park Royal, NW10

  • 1947 Listed Exhibitor - British Industries Fair. Manufacturers of Hearing Aids, Earphones, Acoustical Electronic Thermionic Devices and other Scientific Instruments. Specially Designed Equipment. (Olympia, Ground Floor, Stand No. D.1685) [1]


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