2855140

Information

• Patent Grant
• 2855140

• References
• Source

• Patent Number

  2,855,140

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1958
  66 years ago

• CPC

  • F04F9/04 - in combination with fore pumps
  • Y10S55/15 - Cold traps

• US Classifications

  • 417 - Pumps
  • 055 - Gas separation
  • 096 - Gas separation: apparatus