2240297

Information

• Patent Grant
• 2240297

• References
• Source

• Patent Number

  2,240,297

• Date Filed

  Not available

• Date Issued

  Tuesday, April 29, 1941
  85 years ago

• CPC

  • F21V17/02 - with provision for adjustment
  • F21V14/08 - by movement of the screens or filters
  • H05B31/40 - having two electrodes at an angle

• US Classifications

  • 362 - Illumination
  • 307 - Electrical transmission or interconnection systems