2806562

Information

• Patent Grant
• 2806562

• References
• Source

• Patent Number

  2,806,562

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1957
  67 years ago

• CPC

  • B66C23/64 - Jibs
  • E04C2/405 - composed of two or more hingedly connected parts
  • E04C3/005 - Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
  • Y10S254/06 - Flexible rack and pinion

• US Classifications

  • 052 - Static structures
  • 182 - Fire escape, ladder, or scaffold
  • 254 - Implements or apparatus for applying pushing or pulling force