3637307

Information

• Patent Grant
• 3637307

• References
• Source

• Patent Number

  3,637,307

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1972
  52 years ago

• CPC

  • H04B10/00 - Transmission systems employing electromagnetic waves other than radio-waves
  • B41B17/08 - with a fixed carrier
  • B41B21/16 - Optical systems
  • G02B5/32 - Birefringent or phase retarding elements
  • G11C13/04 - using optical elements using other beam accessed elements
  • G11C13/042 - using information stored in the form of an interference pattern

• US Classifications

  • 355 - Photocopying
  • 359 - Optical: systems and elements
  • 396 - Photography