3557744

Information

• Patent Grant
• 3557744

• References
• Source

• Patent Number

  3,557,744

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • B63B17/0018 - Arrangements or devices specially adapted for facilitating access to underwater elements
  • B63B3/40 - Stern posts Stern frames
  • B63H1/20 - Hubs Blade connections
  • B63H1/26 - Blades

• US Classifications

  • 440 - Marine propulsion
  • 114 - Ships
  • 416 - Fluid reaction surfaces