1278155

Information

• Patent Grant
• 1278155

• References
• Source

• Patent Number

  1,278,155

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1918
  106 years ago

• CPC

  • D21C7/02 - Rotary digesters

• US Classifications

  • 162 - Paper making and fiber liberation
  • 165 - Heat exchange