1913427

Information

• Patent Grant
• 1913427

• References
• Source

• Patent Number

  1,913,427

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1933
  91 years ago

• CPC

  • H01J17/58 - with more than one cathode or anode

• US Classifications

  • 313 - Electric lamp and discharge devices