1847814

Information

• Patent Grant
• 1847814

• References
• Source

• Patent Number

  1,847,814

• Date Filed

  Not available

• Date Issued

  Tuesday, March 1, 1932
  93 years ago

• CPC

  • E02D23/14 - Decreasing the skin friction while lowering

• US Classifications

  • 405 - Hydraulic and earth engineering