2678589

Information

• Patent Grant
• 2678589

• References
• Source

• Patent Number

  2,678,589

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1954
  70 years ago

• CPC

  • H04N1/4446 - Hiding of documents or document information
  • H04N1/4466 - Enveloping, wrapping, or sealing

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 227 - Elongated-member-driving apparatus
  • 283 - Printed matter