✦ LIBER ✦
828. Insulating coating for the cathode heaters of electron tubes: V A Smironov et al,USSR Patent No 342240, appl 12th Oct 1970, publd 2nd Aug 1972.
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 149 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0042-207X
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