3744151

Information

• Patent Grant
• 3744151

• References
• Source

• Patent Number

  3,744,151

• Date Filed

  Not available

• Date Issued

  Tuesday, July 10, 1973
  51 years ago

• CPC

  • G09B23/16 - for science of heat

• US Classifications

  • 434 - Education and demonstration
  • 116 - Signals and indicators
  • 428 - Stock material or miscellaneous articles
  • 472 - Amusement devices