1756946

Information

• Patent Grant
• 1756946

• References
• Source

• Patent Number

  1,756,946

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1930
  94 years ago

• CPC

  • B65D27/20 - using self-locking integral or attached elements

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes