1428887

Information

• Patent Grant
• 1428887

• References
• Source

• Patent Number

  1,428,887

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1922
  102 years ago

• CPC

  • B66C23/26 - for use on building sites constructed
  • B66C23/30 - with frameworks composed of telescopic elements
  • Y10T74/18056 - Rotary to or from reciprocating or oscillating

• US Classifications

  • 074 - Machine element or mechanism
  • 212 - Traversing hoists
  • 254 - Implements or apparatus for applying pushing or pulling force