2022627

Information

• Patent Grant
• 2022627

• References
• Source

• Patent Number

  2,022,627

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1935
  89 years ago

• CPC

  • G09B1/28 - the elements being slidable

• US Classifications

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