3103751

Information

• Patent Grant
• 3103751

• References
• Source

• Patent Number

  3,103,751

• Date Filed

  Not available

• Date Issued

  Tuesday, September 17, 1963
  61 years ago

• CPC

  • B43L1/008 - with magnetic action
  • B43L5/005 - with magnetic action

• US Classifications

  • 434 - Education and demonstration
  • 040 - Card, picture, or sign exhibiting