2293958

Information

• Patent Grant
• 2293958

• References
• Source

• Patent Number

  2,293,958

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1942
  82 years ago

• CPC

  • E21B15/00 - Derricks Masts; Other supports
  • E04H12/26 - Winding-towers for mines

• US Classifications

  • 052 - Static structures
  • 254 - Implements or apparatus for applying pushing or pulling force
  • 414 - Material or article handling