438001

Information

• Patent Grant
• 438001

• References
• Source

• Patent Number

  438,001

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1890
  134 years ago

• CPC

  • B24B55/06 - Dust extraction equipment on grinding or polishing machines
  • Y10S29/099 - Flexible conveyor
  • Y10S29/101 - Pan, bed, or table

• US Classifications

  • 451 - Abrading
  • 029 - Metal working