1930347

Information

• Patent Grant
• 1930347

• References
• Source

• Patent Number

  1,930,347

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1933
  91 years ago

• CPC

  • B42F17/10 - Hinged walls
  • B42D3/045 - Protective cases for books

• US Classifications

  • 206 - Special receptacle or package