574449

Information

• Patent Grant
• 574449

• References
• Source

• Patent Number

  574,449

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1897
  128 years ago

• CPC

  • B24D3/24 - for close-grained structure

• US Classifications

  • 051 - Abrasive tool making process, material, or composition
  • 015 - Brushing, scrubbing, and general cleaning
  • D32 - Washing, cleaning, or drying machine