207394

Information

• Patent Grant
• 207394

• References
• Source

• Patent Number

  207,394

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1878
  146 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • Y10S29/085 - with fluid control valve
  • Y10S29/101 - Pan, bed, or table
  • Y10S29/102 - Debris chute

• US Classifications

  • 451 - Abrading
  • 029 - Metal working