3574957

Information

• Patent Grant
• 3574957

• References
• Source

• Patent Number

  3,574,957

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1971
  53 years ago

• CPC

  • A47G19/2227 - with means for amusing or giving information to the user
  • G09B1/20 - and bearing the symbols on a surface parallel to the axis of rotation

• US Classifications

  • 434 - Education and demonstration
  • 040 - Card, picture, or sign exhibiting
  • D07 - Equipment for preparing or serving food or drink not elsewhere specified