457223

Information

• Patent Grant
• 457223

• References
• Source

• Patent Number

  457,223

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1891
  133 years ago

• CPC

  • D06F7/02 - of the rotary-impeller type

• US Classifications

  • 068 - Textiles: fluid treating apparatus