1530238

Information

• Patent Grant
• 1530238

• References
• Source

• Patent Number

  1,530,238

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1925
  99 years ago

• CPC

  • F21V11/08 - using diaphragms containing one or more apertures
  • F21S48/1789 - Rotating screens
  • F21V11/10 - of iris type
  • F21W2101/02 - for land vehicles

• US Classifications

  • 362 - Illumination