1662333

Information

• Patent Grant
• 1662333

• References
• Source

• Patent Number

  1,662,333

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1928
  96 years ago

• CPC

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

• US Classifications

  • 431 - Combustion