3820134

Information

• Patent Grant
• 3820134

• References
• Source

• Patent Number

  3,820,134

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • F16M11/38 - by folding
  • F16M11/048 - adapted to forward-backward translation movement
  • F16M11/18 - with mechanism for moving the apparatus relatively to the stand
  • F16M11/425 - along guiding means
  • G09B9/305 - by viewing with a camera a small-scale model of the terrain
  • F16M2200/041 - for balancing rotational movement of the head
  • F16M2200/066 - being part of the head

• US Classifications

  • 396 - Photography
  • 352 - Optics: motion pictures
  • 434 - Education and demonstration