2540774

Information

• Patent Grant
• 2540774

• References
• Source

• Patent Number

  2,540,774

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1951
  74 years ago

• CPC

  • B23Q3/086 - using a solidifying liquid
  • B23Q1/5412 - followed perpendicularly by a single rotating pair
  • B23Q17/24 - using optics or electromagnetic waves
  • Y10T82/30 - Miscellaneous
  • Y10T408/21 - with signal, indicator, illuminator or optical means
  • Y10T409/30308 - to make a double curvature foil

• US Classifications

  • 451 - Abrading
  • 082 - Turning
  • 269 - Work holders
  • 408 - Cutting by use of rotating axially moving tool
  • 409 - Gear cutting, milling, or planing