3688643

Information

• Patent Grant
• 3688643

• References
• Source

• Patent Number

  3,688,643

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • B24B19/026 - for checks for pilger rolls
  • B23B51/00 - Tools for drilling machines
  • B23C3/28 - Grooving workpieces
  • Y10T82/13 - Pattern section
  • Y10T409/500164 - with regulation of operation by templet, card, or other replaceable information supply
  • Y10T409/502788 - Arcuate groove

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 082 - Turning