2234694

Information

• Patent Grant
• 2234694

• References
• Source

• Patent Number

  2,234,694

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1941
  83 years ago

• CPC

  • B41N1/243 - characterised by the ink pervious sheet

• US Classifications

  • 162 - Paper making and fiber liberation
  • 106 - Compositions: coating or plastic