2481751

Information

• Patent Grant
• 2481751

• References
• Source

• Patent Number

  2,481,751

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1949
  75 years ago

• CPC

  • B63H1/22 - the blades being foldable
  • B63H3/04 - the control element being reciprocatable

• US Classifications

  • 416 - Fluid reaction surfaces