3804057

Information

• Patent Grant
• 3804057

• References
• Source

• Patent Number

  3,804,057

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • G06G1/0052 - for air navigation or sea navigation
  • B63B49/00 - Arrangements of nautical instruments or navigational aids
  • G01C21/203 - Specially adapted for sailing ships
  • Y02T70/747 - Course optimization

• US Classifications

  • 116 - Signals and indicators
  • 033 - Geometrical instruments
  • 073 - Measuring and testing