1639968

Information

• Patent Grant
• 1639968

• References
• Source

• Patent Number

  1,639,968

• Date Filed

  Not available

• Date Issued

  Tuesday, August 23, 1927
  97 years ago

• CPC

  • D01H1/425 - Anti-ballooning rings
  • D01H9/043 - for cap type machines
  • D01H9/14 - for preparing machines for doffing of yarns

• US Classifications

  • 057 - Textiles: spinning, twisting, and twining