1556128

Information

• Patent Grant
• 1556128

• References
• Source

• Patent Number

  1,556,128

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1925
  99 years ago

• CPC

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

• US Classifications

  • 037 - Excavating
  • 405 - Hydraulic and earth engineering
  • 406 - Conveyors: fluid current