2120916

Information

• Patent Grant
• 2120916

• References
• Source

• Patent Number

  2,120,916

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1938
  86 years ago

• CPC

  • H01J31/50 - Image-conversion or image-amplification tubes
  • H01J2231/50026 - Infra-red
  • H01J2231/5056 - magnetic

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 136 - Batteries: thermoelectric and photoelectric
  • 204 - Chemistry: electrical and wave energy
  • 250 - Radiant energy
  • 252 - Compositions
  • 315 - Electric lamp and discharge devices: systems
  • 427 - Coating processes