2820387

Information

• Patent Grant
• 2820387

• References
• Source

• Patent Number

  2,820,387

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1958
  67 years ago

• CPC

  • B23B5/168 - with guiding devices
  • B21D17/04 - by rolling
  • B23B29/12 - Special arrangements on tool holders
  • B23B2260/116 - Rollers or rolls
  • B23B2270/205 - Machining or gripping both internal and external surfaces
  • Y10T29/5122 - with means to feed work during tool contact
  • Y10T82/2583 - Tool and work rest

• US Classifications

  • 082 - Turning
  • 029 - Metal working