3869344

Information

• Patent Grant
• 3869344

• References
• Source

• Patent Number

  3,869,344

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1975
  49 years ago

• CPC

  • D21G3/00 - Doctors
  • B28B23/22 - assembled from preformed parts
  • C04B35/111 - Fine ceramics
  • D21F1/483 - Drainage foils and bars
  • D21F1/523 - Covers thereof
  • D21G3/005 - Doctor knifes

• US Classifications

  • 162 - Paper making and fiber liberation
  • 015 - Brushing, scrubbing, and general cleaning