1234443

Information

• Patent Grant
• 1234443

• References
• Source

• Patent Number

  1,234,443

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1917
  107 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
  • 125 - Stone working