1969757

Information

• Patent Grant
• 1969757

• References
• Source

• Patent Number

  1,969,757

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1934
  90 years ago

• CPC

  • B65D27/28 - Applications of separate closing elements

• US Classifications

  • 229 - Envelopes, wrappers, and paperboard boxes