2221843

Information

• Patent Grant
• 2221843

• References
• Source

• Patent Number

  2,221,843

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1940
  84 years ago

• CPC

  • B66F3/24 - fluid-pressure operated
  • B66F3/30 - with positive brakes or lock
  • E21D15/54 - Details of the ends of props

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force