3579862

Information

• Patent Grant
• 3579862

• References
• Source

• Patent Number

  3,579,862

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  53 years ago

• CPC

  • G09B1/10 - by means of pins and holes

• US Classifications

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