2169735

Information

• Patent Grant
• 2169735

• References
• Source

• Patent Number

  2,169,735

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1939
  85 years ago

• CPC

  • F21L19/006 - Special adaptation for protection against draughts

• US Classifications

  • 362 - Illumination
  • 431 - Combustion