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339. A plane grid for electrical-vacuum devices: A I Geren, USSR Patent, No 256,091, appl 10th May 1967, publd 3rd April 1970

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 155 KB
Volume: 21
Category: Article
ISSN: 0042-207X
DOI: 10.1016/0042-207x(71)91983-x

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