2459637

Information

• Patent Grant
• 2459637

• References
• Source

• Patent Number

  2,459,637

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1949
  75 years ago

• CPC

  • H01J29/89 - Optical or photographic arrangements structurally combined or co-operating with the vessel
  • H01J2229/8907 - Image projection devices
  • H01J2229/893 - using lenses

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 348 - Television
  • 362 - Illumination