840939

Information

• Patent Grant
• 840939

• References
• Source

• Patent Number

  840,939

• Date Filed

  Not available

• Date Issued

  Tuesday, January 8, 1907
  118 years ago

• CPC

  • B23B3/065 - Arrangements for performing other machining operations
  • Y10T408/344 - including Tool operating on rotating work
  • Y10T408/35 - including plural rotating tools
  • Y10T408/353 - Crystalline cutter
  • Y10T408/42 - Axis of Tool moving with work during operation

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 451 - Abrading