3448536

Information

• Patent Grant
• 3448536

• References
• Source

• Patent Number

  3,448,536

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • B42D3/06 - with hinges

• US Classifications

  • 040 - Card, picture, or sign exhibiting