3309224

Information

• Patent Grant
• 3309224

• References
• Source

• Patent Number

  3,309,224

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1967
  59 years ago

• CPC

  • D21H19/70 - with internal voids

• US Classifications

  • 427 - Coating processes
  • 101 - Printing