2705460

Information

• Patent Grant
• 2705460

• References
• Source

• Patent Number

  2,705,460

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1955
  69 years ago

• CPC

  • F04B53/1037 - Flap valves
  • F04B47/005 - Sand trap arrangements

• US Classifications

  • 417 - Pumps
  • 015 - Brushing, scrubbing, and general cleaning
  • 092 - Expansible chamber devices
  • 116 - Signals and indicators
  • 166 - Wells
  • 367 - Communications, electrical: acoustic wave systems and devices