2505869

Information

• Patent Grant
• 2505869

• References
• Source

• Patent Number

  2,505,869

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1950
  74 years ago

• CPC

  • B64D17/56 - responsive to barometric pressure

• US Classifications

  • 244 - Aeronautics and astronautics
  • 060 - Power plants
  • 254 - Implements or apparatus for applying pushing or pulling force
  • 294 - Handling: hand and hoist-line implements