2224077

Information

• Patent Grant
• 2224077

• References
• Source

• Patent Number

  2,224,077

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1940
  84 years ago

• CPC

  • F21V14/08 - by movement of the screens or filters
  • G21K1/04 - using variable diaphragms, shutters, choppers
  • H05B31/40 - having two electrodes at an angle

• US Classifications

  • 378 - X-ray or gamma ray systems or devices
  • 246 - Railway switches and signals
  • 359 - Optical: systems and elements
  • 362 - Illumination
  • 976 - Nuclear technology