628. A high-vacuum valve: E V Gluschachenkov and V A Kazantsev, USSR patent, No 294, 035, appl 10th Nov 1969, publd 12th March 1971

• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 177 KB
• Volume: 22
• Category: Article
• ISSN: 0042-207X
• DOI: 10.1016/0042-207x(72)90160-1