2273896

Information

• Patent Grant
• 2273896

• References
• Source

• Patent Number

  2,273,896

• Date Filed

  Not available

• Date Issued

  Tuesday, February 24, 1942
  82 years ago

• CPC

  • F04B43/0018 - the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve

• US Classifications

  • 417 - Pumps