Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,713 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.

High Vacuum Valve Co: Difference between revisions

From Graces Guide
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of Farringdon Road, London
of Farringdon Road, London


Previously [[Freedman Radio Valve Co]]
Previously [[Freedman Valve Co]]


1930-33 [[Paul Freedman]] was MD
1930-33 [[Paul Freedman]] was MD

Revision as of 18:08, 30 July 2017

1935. Hivac.
1935. Hivac.

of Farringdon Road, London

Previously Freedman Valve Co

1930-33 Paul Freedman was MD

Name changed to Hivac.

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