1852862

Information

• Patent Grant
• 1852862

• References
• Source

• Patent Number

  1,852,862

• Date Filed

  Not available

• Date Issued

  Tuesday, April 5, 1932
  92 years ago

• CPC

  • F21L23/00 - Non-electric hand-lamps for miners

• US Classifications

  • 239 - Fluid sprinkling, spraying, and diffusing
  • 362 - Illumination