3728940

Information

• Patent Grant
• 3728940

• References
• Source

• Patent Number

  3,728,940

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1973
  52 years ago

• CPC

  • B23C3/055 - for engines
  • F01L3/22 - Valve-seats not provided for in preceding subgroups of this group Fixing of valve-seats
  • Y10T408/5587 - Valve fitting
  • Y10T408/8729 - with work-engaging structure other than cutting edge

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 033 - Geometrical instruments