250297

Information

• Patent Grant
• 250297

• References
• Source

• Patent Number

  250,297

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1881
  143 years ago

• CPC

  • B24B57/00 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
  • Y10S29/065 - Cutter contained supply reservoir

• US Classifications

  • 451 - Abrading
  • 029 - Metal working
  • 251 - Valves and valve actuation