2249025

Information

• Patent Grant
• 2249025

• References
• Source

• Patent Number

  2,249,025

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1941
  83 years ago

• CPC

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

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 250 - Radiant energy