3011939

Information

• Patent Grant
• 3011939

• References
• Source

• Patent Number

  3,011,939

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1961
  63 years ago

• CPC

  • D21F9/043 - with immersed cylinder
  • D21F1/36 - Guiding mechanisms

• US Classifications

  • 162 - Paper making and fiber liberation