1916684

Information

• Patent Grant
• 1916684

• References
• Source

• Patent Number

  1,916,684

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1933
  91 years ago

• CPC

  • E02D23/06 - bringing persons or material into or out of compressed air caissons

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 414 - Material or article handling