1788935

Information

• Patent Grant
• 1788935

• References
• Source

• Patent Number

  1,788,935

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1931
  94 years ago

• CPC

  • F21V5/00 - Refractors for light sources
  • F21S48/1172 - having two or more filaments
  • F21S48/1177 - characterised by the shape of the filament
  • F21S48/1233 - Cover glass
  • F21W2101/02 - for land vehicles

• US Classifications

  • 362 - Illumination