1394569

Information

• Patent Grant
• 1394569

• References
• Source

• Patent Number

  1,394,569

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1921
  104 years ago

• CPC

  • H05G1/68 - Circuit arrangements for Lilienfield tubes Circuit arrangements for gas-filled X-ray tubes

• US Classifications

  • 378 - X-ray or gamma ray systems or devices
  • 315 - Electric lamp and discharge devices: systems