1670997

Information

• Patent Grant
• 1670997

• References
• Source

• Patent Number

  1,670,997

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1928
  96 years ago

• CPC

  • B63H25/38 - Rudders
  • B63H2025/388 - with varying angle of attack over the height of the rudder blade

• US Classifications

  • 114 - Ships