975792

Information

• Patent Grant
• 975792

• References
• Source

• Patent Number

  975,792

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1910
  114 years ago

• CPC

  • B42F7/08 - expansible
  • Y10S229/928 - Expandable envelope

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes