Details
- TitlePatent No. 499, 869 Improvements in or relating to Electron Discharge Devices
- ReferenceUK0108 NAEST 148/1/33
- Date1939-01-26
- Scope and Contentby Lubszynski, Harold Miller and J E I Cairns
- Physical descriptionNumber of pieces: 1, Pages/folios: 6 + 2
- LanguageEnglish.
- Persons keyword
- Subject
- Conditions governing accessOpen access
- Level of descriptionfile
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