3731415

Information

• Patent Grant
• 3731415

• References
• Source

• Patent Number

  3,731,415

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1973
  52 years ago

• CPC

  • G09D3/06 - with rotatable members
  • Y10S206/818 - Magnet

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 206 - Special receptacle or package