2456878

Information

• Patent Grant
• 2456878

• References
• Source

• Patent Number

  2,456,878

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1948
  76 years ago

• CPC

  • E21D11/03 - using timber- setting machines

• US Classifications

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