3656844

Information

• Patent Grant
• 3656844

• References
• Source

• Patent Number

  3,656,844

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • G05D3/00 - Control of position or direction
  • F21S11/005 - with tracking means for following the position of the sun

• US Classifications

  • 353 - Optics: image projectors