3398505

Information

• Patent Grant
• 3398505

• References
• Source

• Patent Number

  3,398,505

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1968
  55 years ago

• CPC

  • G01N30/722 - through a gas permeable barrier (membranes, porous layers)
  • G01N1/34 - Purifying Cleaning

• US Classifications

  • 095 - Gas separation: processes
  • 073 - Measuring and testing
  • 096 - Gas separation: apparatus