1853890

Information

• Patent Grant
• 1853890

• References
• Source

• Patent Number

  1,853,890

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1932
  93 years ago

• CPC

  • B63B3/40 - Stern posts Stern frames
  • B63H2001/125 - with helicoidal foils projecting from outside surfaces of floating rotatable bodies
  • B63H2005/106 - with drive shafts of second or further propellers co-axially passing through hub of first propeller
  • B63H2023/0283 - using gears having orbital motion
  • B63H2023/067 - the elements being formed by two or more coaxial shafts
  • B63H2023/342 - comprising couplings

• US Classifications

  • 440 - Marine propulsion