3727532

Information

• Patent Grant
• 3727532

• References
• Source

• Patent Number

  3,727,532

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1973
  51 years ago

• CPC

  • G09B9/305 - by viewing with a camera a small-scale model of the terrain
  • G03B17/561 - Support related camera accessories

• US Classifications

  • 348 - Television
  • 396 - Photography
  • 434 - Education and demonstration