851921

Information

• Patent Grant
• 851921

• References
• Source

• Patent Number

  851,921

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1907
  117 years ago

• CPC

  • D01H1/243 - driven by friction discs
  • Y10T74/19595 - Automatic control

• US Classifications

  • 057 - Textiles: spinning, twisting, and twining
  • 074 - Machine element or mechanism