3540549

Information

• Patent Grant
• 3540549

• References
• Source

• Patent Number

  3,540,549

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1970
  54 years ago

• CPC

  • E06C1/39 - Ladders having platforms Ladders changeable into platforms
  • E06C1/20 - with supporting struts formed as poles
  • E06C1/382 - Tripod ladders

• US Classifications

  • 182 - Fire escape, ladder, or scaffold