2730639

Information

• Patent Grant
• 2730639

• References
• Source

• Patent Number

  2,730,639

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1956
  68 years ago

• CPC

  • H01J29/43 - using photo-emissive mosaic

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 427 - Coating processes