2662305

Information

• Patent Grant
• 2662305

• References
• Source

• Patent Number

  2,662,305

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1953
  71 years ago

• CPC

  • F41G3/28 - Small-scale apparatus
  • F41G3/2627 - Cooperating with a motion picture projector

• US Classifications

  • 434 - Education and demonstration