2208990

Information

• Patent Grant
• 2208990

• References
• Source

• Patent Number

  2,208,990

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1940
  84 years ago

• CPC

  • B63C9/115 - using solid buoyant material
  • A47L3/04 - Safety ropes

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 244 - Aeronautics and astronautics