3314169

Information

• Patent Grant
• 3314169

• References
• Source

• Patent Number

  3,314,169

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1967
  57 years ago

• CPC

  • G09B23/04 - for geometry, trigonometry, projection or perspective
  • Y10S273/31 - Undulated surface

• US Classifications

  • 434 - Education and demonstration
  • 273 - Amusement devices: games