1139990

Information

• Patent Grant
• 1139990

• References
• Source

• Patent Number

  1,139,990

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1915
  109 years ago

• CPC

  • E06C1/382 - Tripod ladders
  • E06C1/20 - with supporting struts formed as poles

• US Classifications

  • 182 - Fire escape, ladder, or scaffold