3640057

Information

• Patent Grant
• 3640057

• References
• Source

• Patent Number

  3,640,057

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1972
  52 years ago

• CPC

  • D01H7/88 - Hollow-spindle arrangements

• US Classifications

  • 057 - Textiles: spinning, twisting, and twining
  • 242 - Winding, tensioning, or guiding