2668989

Information

• Patent Grant
• 2668989

• References
• Source

• Patent Number

  2,668,989

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1954
  70 years ago

• CPC

  • B02B3/08 - by means of beaters or blades

• US Classifications

  • 019 - Textiles: fiber preparation