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- [6] A greaseless high-vacuum valve INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1939, 11 : 0396 - 0396
- [9] EASILY CONSTRUCTED HIGH-VACUUM VALVE REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (10): : 1627 - 1628
- [10] A COMBINATION HIGH-VACUUM AND PRESSURE VALVE REVIEW OF SCIENTIFIC INSTRUMENTS, 1953, 24 (09): : 875 - 876