3561392

Information

• Patent Grant
• 3561392

• References
• Source

• Patent Number

  3,561,392

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1971
  53 years ago

• CPC

  • B63H23/14 - with unidirectional drive or where reversal is immaterial
  • B63H11/103 - having means to increase efficiency of propulsive fluid
  • B63H2011/081 - with axial flow
  • B63H2011/085 - having counter-rotating impellers
  • B63H2023/0216 - by means of belts, or the like

• US Classifications

  • 440 - Marine propulsion