2993331

Information

• Patent Grant
• 2993331

• References
• Source

• Patent Number

  2,993,331

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1961
  63 years ago

• CPC

  • D01H1/162 - for ring type

• US Classifications

  • 057 - Textiles: spinning, twisting, and twining