3805430

Information

• Patent Grant
• 3805430

• References
• Source

• Patent Number

  3,805,430

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • G09D3/08 - of disc form

• US Classifications

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