1620732

Information

• Patent Grant
• 1620732

• References
• Source

• Patent Number

  1,620,732

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1927
  98 years ago

• CPC

  • H05G1/50 - Passing the tube current only during a restricted portion of the voltage waveform

• US Classifications

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