523011

Information

• Patent Grant
• 523011

• References
• Source

• Patent Number

  523,011

• Date Filed

  Not available

• Date Issued

  Tuesday, July 17, 1894
  130 years ago

• CPC

  • E06C5/30 - formed of links which reinforce themselves against each other
  • A62B5/00 - Other devices for rescuing from fire

• US Classifications

  • 182 - Fire escape, ladder, or scaffold