3807707

Information

• Patent Grant
• 3807707

• References
• Source

• Patent Number

  3,807,707

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  51 years ago

• CPC

  • F02M19/021 - the cross-sectional area being changed mechanically

• US Classifications

  • 261 - Gas and liquid contact apparatus