1991337

Information

• Patent Grant
• 1991337

• References
• Source

• Patent Number

  1,991,337

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1935
  89 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • Y10S29/078 - Air blast and/or vacuum conveyor
  • Y10S29/083 - Fan coaxial with cutter

• US Classifications

  • 055 - Gas separation
  • 029 - Metal working
  • 451 - Abrading