✦ LIBER ✦
514. Apparatus for annealing electrical vacuum devices such as receiving and transmitting valves. (USSR): V S Goverdovskii et al,USSR Patent No 334190, appl 13th Aug 1970, publd 16th May 1972
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 171 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0042-207X
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