2459778

Information

• Patent Grant
• 2459778

• References
• Source

• Patent Number

  2,459,778

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1949
  77 years ago

• CPC

  • H01J31/44 - Tubes with image amplification section

• US Classifications

  • 348 - Television
  • 250 - Radiant energy
  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems