1749376

Information

• Patent Grant
• 1749376

• References
• Source

• Patent Number

  1,749,376

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1930
  95 years ago

• CPC

  • B42F7/08 - expansible
  • B42P2201/10 - for large documents
  • B42P2221/00 - Books or filing appliances with additional arrangements

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes