3877801

Information

• Patent Grant
• 3877801

• References
• Source

• Patent Number

  3,877,801

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1975
  49 years ago

• CPC

  • B41B21/14 - Combinations of light sources
  • B41B21/16 - Optical systems
  • G03B21/10 - Projectors with built-in or built-on screen

• US Classifications

  • 353 - Optics: image projectors
  • 359 - Optical: systems and elements