2291550

Information

• Patent Grant
• 2291550

• References
• Source

• Patent Number

  2,291,550

• Date Filed

  Not available

• Date Issued

  Tuesday, July 28, 1942
  82 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • H02K7/145 - Hand-held machine tool
  • H02K9/12 - wherein the cooling medium circulates freely within the casing
  • H02K9/28 - Cooling of commutators, slip-rings, or brushes
  • Y10S29/079 - Removable debris receptacle
  • Y10S29/101 - Pan, bed, or table

• US Classifications

  • 451 - Abrading
  • 029 - Metal working