3539696

Information

• Patent Grant
• 3539696

• References
• Source

• Patent Number

  3,539,696

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1970
  54 years ago

• CPC

  • G09B9/305 - by viewing with a camera a small-scale model of the terrain
  • G01S1/02 - using radio waves

• US Classifications

  • 434 - Education and demonstration