3721516

Information

• Patent Grant
• 3721516

• References
• Source

• Patent Number

  3,721,516

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • F21V21/0824 - Ground spikes
  • F21L17/00 - Non-electric torches Non-electric flares
  • F21S13/10 - with a standard

• US Classifications

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