1380283

Information

• Patent Grant
• 1380283

• References
• Source

• Patent Number

  1,380,283

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1921
  103 years ago

• CPC

  • B63H1/30 - of non-rotary type
  • B63B2754/00 - Propulsive flaps

• US Classifications

  • 416 - Fluid reaction surfaces
  • 440 - Marine propulsion