348232

Information

• Patent Grant
• 348232

• References
• Source

• Patent Number

  348,232

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1886
  138 years ago

• CPC

  • F21V1/18 - the material being paper
  • F21V1/16 - characterised by the material
  • F21V29/15 - Thermal insulation

• US Classifications

  • 362 - Illumination