2230872

Information

• Patent Grant
• 2230872

• References
• Source

• Patent Number

  2,230,872

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1941
  83 years ago

• CPC

  • A24F1/00 - Tobacco pipes
  • A24F2700/04 - Pipes filled with absorbant materials, pipes with devices filtering the smoke

• US Classifications

  • 131 - Tobacco
  • 235 - Registers