2014389

Information

• Patent Grant
• 2014389

• References
• Source

• Patent Number

  2,014,389

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1935
  89 years ago

• CPC

  • B63C11/38 - with entrance above water surface

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 037 - Excavating