451290

Information

• Patent Grant
• 451290

• References
• Source

• Patent Number

  451,290

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1891
  133 years ago

• CPC

  • E06B9/52 - Devices affording protection against insects
  • Y10S416/501 - Fly brush type impeller

• US Classifications

  • 049 - Movable or removable closures
  • 416 - Fluid reaction surfaces