1816139

Information

• Patent Grant
• 1816139

• References
• Source

• Patent Number

  1,816,139

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1931
  93 years ago

• CPC

  • A24F13/30 - Arrangements for producing smoke images or rings

• US Classifications

  • 131 - Tobacco
  • 446 - Amusement devices: toys