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680. Method of joining glass parts of the envelopes of electrical vacuum apparatus: V S Aksenov and G S Dobrov, USSR Patent No 299889, appl 28th Feb 1969, publd 7th June 1971


Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
255 KB
Volume
22
Category
Article
ISSN
0042-207X

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