2812528

Information

• Patent Grant
• 2812528

• References
• Source

• Patent Number

  2,812,528

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1957
  67 years ago

• CPC

  • B64C1/24 - Steps mounted on, and retractable within, fuselages
  • E04F11/062 - folding

• US Classifications

  • 052 - Static structures
  • 160 - Flexible or portable closure, partition, or panel
  • 182 - Fire escape, ladder, or scaffold
  • 244 - Aeronautics and astronautics