2143527

Information

• Patent Grant
• 2143527

• References
• Source

• Patent Number

  2,143,527

• Date Filed

  Not available

• Date Issued

  Tuesday, January 10, 1939
  86 years ago

• CPC

  • H01J31/15 - with ray or beam selectively directed to luminescent anode segments
  • H01J21/12 - Tubes with variable amplification factor
  • H01J2893/0032 - Tubes with variable amplification factor

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems