3032893

Information

• Patent Grant
• 3032893

• References
• Source

• Patent Number

  3,032,893

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1962
  62 years ago

• CPC

  • G09B23/10 - of solid bodies
  • Y10T74/18352 - Trammel-pitman

• US Classifications

  • 434 - Education and demonstration
  • 033 - Geometrical instruments
  • 074 - Machine element or mechanism
  • 273 - Amusement devices: games
  • 446 - Amusement devices: toys
  • D19 - Office supplies