3306812

Information

• Patent Grant
• 3306812

• References
• Source

• Patent Number

  3,306,812

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1967
  57 years ago

• CPC

  • D21J1/18 - Hardboard

• US Classifications

  • 162 - Paper making and fiber liberation
  • 106 - Compositions: coating or plastic
  • 264 - Plastic and nonmetallic article shaping or treating: processes