1833318

Information

• Patent Grant
• 1833318

• References
• Source

• Patent Number

  1,833,318

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1931
  93 years ago

• CPC

  • F21L11/00 - Portable lighting devices with built-in batteries or accumulators, not covered by group F21L4/00 or F21L7/00
  • F21L4/00 - Electric lighting devices with self-contained electric batteries or cells
  • F21V25/06 - feeding a quenching fluid to the light source

• US Classifications

  • 362 - Illumination