1827806

Information

• Patent Grant
• 1827806

• References
• Source

• Patent Number

  1,827,806

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1931
  93 years ago

• CPC

  • B63B3/40 - Stern posts Stern frames
  • B63H25/38 - Rudders
  • Y02T70/121 - Reducing surface friction

• US Classifications

  • 440 - Marine propulsion
  • 114 - Ships