724513

Information

• Patent Grant
• 724513

• References
• Source

• Patent Number

  724,513

• Date Filed

  Not available

• Date Issued

  Tuesday, April 7, 1903
  121 years ago

• CPC

  • E06C5/22 - by, or with the assistance of, springs

• US Classifications

  • 182 - Fire escape, ladder, or scaffold