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 147,950 pages of information and 233,606 images on early companies, their products and the people who designed and built them.

Technograph Printed Circuits

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of Regent Street, London

of Shaftesbury Avenue, London, W.1., the same address as Technograph Electronic Products (1957)

WWII Founded by Harold Vezey Strong and a scientist friend (Paul Eisler) to develop the foil technique for making printed circuits; subsequently established subsidiary companies in Europe and America[1]

1950 Private company.

1957 Technograph World Patented Processes for the Production of Special Foil Parts, Flexible Conductors, and Printed Circuits.

1961 Manufacturers and developers of electrical and radio equipment, circuits, fuses and accessories. 150 employees.[2]

1971 Won a 10-year battle to confirm its patents on printed circuits against Mills and Rockley (Electronics)[3] which would lead to royalties being paid by many other companies too.

See Also


Sources of Information

  1. The Times, Aug 16, 1955
  2. * 1961 Dun and Bradstreet KBE
  3. The Times, Feb 25, 1971