1987697

Information

• Patent Grant
• 1987697

• References
• Source

• Patent Number

  1,987,697

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1935
  90 years ago

• CPC

  • F21S48/1233 - Cover glass
  • F21S48/1172 - having two or more filaments
  • F21S48/1177 - characterised by the shape of the filament
  • F21S48/137 - with discontinuity at the junction between adjacent areas
  • F21W2101/02 - for land vehicles

• US Classifications

  • 362 - Illumination