989389

Information

• Patent Grant
• 989389

• References
• Source

• Patent Number

  989,389

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1911
  114 years ago

• CPC

  • E06C5/30 - formed of links which reinforce themselves against each other
  • A62B5/00 - Other devices for rescuing from fire
  • Y10S254/06 - Flexible rack and pinion

• US Classifications

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