3471943

Information

• Patent Grant
• 3471943

• References
• Source

• Patent Number

  3,471,943

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1969
  55 years ago

• CPC

  • G09B9/066 - Sailing; Surfing
  • A63B69/0066 - for wind-surfing

• US Classifications

  • 434 - Education and demonstration