2232479

Information

• Patent Grant
• 2232479

• References
• Source

• Patent Number

  2,232,479

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1941
  83 years ago

• CPC

  • A24F1/32 - Selection of materials for pipes
  • A24F1/06 - inside the pipe

• US Classifications

  • 131 - Tobacco