3693515

Information

• Patent Grant
• 3693515

• References
• Source

• Patent Number

  3,693,515

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1972
  52 years ago

• CPC

  • G02B27/0994 - Fibers, light pipes
  • B41B21/08 - Light sources Devices associated therewith
  • B41B21/16 - Optical systems

• US Classifications

  • 396 - Photography
  • 352 - Optics: motion pictures
  • 353 - Optics: image projectors
  • 385 - Optical waveguides