3591213

Information

• Patent Grant
• 3591213

• References
• Source

• Patent Number

  3,591,213

• Date Filed

  Not available

• Date Issued

  Tuesday, July 6, 1971
  53 years ago

• CPC

  • E04F11/025 - Stairways having stringers
  • E04B1/2604 - Connections specially adapted therefor
  • E04B2001/2632 - with dovetail-type connections

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 248 - Supports