620. A piston-type vacuum pump: V M Brodyanskii et al, USSR Patent, No 273362, appl 10th Jan 1969, publd 28th Dec 1970

• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 151 KB
• Volume: 22
• Category: Article
• ISSN: 0042-207X
• DOI: 10.1016/0042-207x(72)90152-2