2153940

Information

• Patent Grant
• 2153940

• References
• Source

• Patent Number

  2,153,940

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  85 years ago

• CPC

  • G09F21/12 - the advertising matter being towed by the aircraft

• US Classifications

  • 040 - Card, picture, or sign exhibiting