3778664

Information

• Patent Grant
• 3778664

• References
• Source

• Patent Number

  3,778,664

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • H01J61/067 - for low-pressure discharge lamps
  • H01J9/04 - of thermionic cathodes
  • H01K3/02 - Manufacture of incandescent bodies
  • H01K3/04 - Machines therefor

• US Classifications

  • 313 - Electric lamp and discharge devices