3863691

Information

• Patent Grant
• 3863691

• References
• Source

• Patent Number

  3,863,691

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1975
  50 years ago

• CPC

  • B24B17/025 - for grinding rotating workpieces (three dimensional)
  • Y10T409/302744 - and means for operation without manual intervention

• US Classifications

  • 142 - Wood turning
  • 409 - Gear cutting, milling, or planing