502883

Information

• Patent Grant
• 502883

• References
• Source

• Patent Number

  502,883

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1893
  131 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • Y10S29/085 - with fluid control valve

• US Classifications

  • 451 - Abrading
  • 029 - Metal working
  • 144 - Woodworking