2813728

Information

• Patent Grant
• 2813728

• References
• Source

• Patent Number

  2,813,728

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1957
  67 years ago

• CPC

  • B42D5/028 - Form set holders; Articles combined therewith
  • B42D3/00 - Book covers

• US Classifications

  • 281 - Books, strips, and leaves