2172516

Information

• Patent Grant
• 2172516

• References
• Source

• Patent Number

  2,172,516

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1939
  85 years ago

• CPC

  • D01D10/0409 - on bobbins

• US Classifications

  • 057 - Textiles: spinning, twisting, and twining
  • 008 - Bleaching and dyeing
  • 034 - Drying and gas or vapor contact with solids