High Vacuum Valve Co: Difference between revisions
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[[Image:ImWT19330902-Hivac.jpg|thumb| September 1933.]] | |||
[[Image:Im1935RSS-High.jpg|thumb| 1935. Hivac. ]] | [[Image:Im1935RSS-High.jpg|thumb| 1935. Hivac. ]] | ||
[[Image:Im1935RSS-High2.jpg|thumb| 1935. Hivac. ]] | [[Image:Im1935RSS-High2.jpg|thumb| 1935. Hivac. ]] | ||
[[image:Hivac 1939CRT.jpg|thumb| April 1939. ]] | |||
of Farringdon Road, London | of Farringdon Road, London, maker of valves and cathode ray tubes | ||
Previously [[Freedman Valve Co]] | Previously [[Freedman Valve Co]] | ||
Revision as of 08:17, 11 July 2022
of Farringdon Road, London, maker of valves and cathode ray tubes
Previously Freedman Valve Co
1930-33 Paul Freedman was MD
1935 Patent to the company and Donovan William Sayers for a portable wireless receiver
Name changed to Hivac.
See Also
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