3220431

Information

• Patent Grant
• 3220431

• References
• Source

• Patent Number

  3,220,431

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • B24B15/08 - for grinding co-operating seat surfaces by moving one over the other
  • Y10T137/4322 - With independent grinding actuator

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation
  • 451 - Abrading