3628270

Information

• Patent Grant
• 3628270

• References
• Source

• Patent Number

  3,628,270

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1971
  53 years ago

• CPC

  • G09D3/08 - of disc form

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • D19 - Office supplies