3661385

Information

• Patent Grant
• 3661385

• References
• Source

• Patent Number

  3,661,385

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • A63H33/22 - Optical, colour, or shadow toys
  • G09B23/22 - for optics
  • A63F2009/0633 - Fresnel lenses

• US Classifications

  • 472 - Amusement devices
  • 040 - Card, picture, or sign exhibiting
  • 359 - Optical: systems and elements