2947739

Information

• Patent Grant
• 2947739

• References
• Source

• Patent Number

  2,947,739

• Date Filed

  Not available

• Date Issued

  Tuesday, August 2, 1960
  64 years ago

• CPC

  • D21C3/006 - with compounds not otherwise provided for

• US Classifications

  • 530 - Chemistry: natural resins or derivatives
  • 162 - Paper making and fiber liberation