1950289

Information

• Patent Grant
• 1950289

• References
• Source

• Patent Number

  1,950,289

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1934
  90 years ago

• CPC

  • B66D1/605 - scaffolding winshes
  • B66D1/06 - Safety cranks for preventing unwanted crank rotation and subsequent lowering of the loads
  • Y10T74/20474 - Rotatable rod, shaft, or post
  • Y10T74/20624 - Adjustable
  • Y10T74/20756 - Collapsible
  • Y10T74/20762 - Shaft connections

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 074 - Machine element or mechanism
  • 182 - Fire escape, ladder, or scaffold