1380136

Information

• Patent Grant
• 1380136

• References
• Source

• Patent Number

  1,380,136

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1921
  103 years ago

• CPC

  • B23B5/26 - for simultaneously turning internal and external surfaces of a body
  • Y10T29/49284 - including machining or angular cutting
  • Y10T29/53904 - Means comprising piston ring group contractor or holder
  • Y10T82/266 - Mandrel
  • Y10T279/16 - Longitudinal screw clamp

• US Classifications

  • 082 - Turning
  • 029 - Metal working
  • 269 - Work holders
  • 279 - Chucks or sockets
  • 451 - Abrading