2928991

Information

• Patent Grant
• 2928991

• References
• Source

• Patent Number

  2,928,991

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1960
  65 years ago

• CPC

  • H05B31/0036 - for projection, copying or stage lighting

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 200 - Electricity: circuit makers and breakers
  • 313 - Electric lamp and discharge devices
  • 314 - Electric lamp and discharge devices: consumable electrodes