1660532

Information

• Patent Grant
• 1660532

• References
• Source

• Patent Number

  1,660,532

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1928
  96 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • Y10S29/104 - Tool or work attached

• US Classifications

  • 451 - Abrading
  • 029 - Metal working