1863470

Information

• Patent Grant
• 1863470

• References
• Source

• Patent Number

  1,863,470

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1932
  92 years ago

• CPC

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

• US Classifications

  • 048 - Gas: heating and illuminating