2720141

Information

• Patent Grant
• 2720141

• References
• Source

• Patent Number

  2,720,141

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1955
  69 years ago

• CPC

  • B23C3/18 - for shaping screw-propellers, turbine blades, or impellers
  • Y10T82/2583 - Tool and work rest
  • Y10T409/302744 - and means for operation without manual intervention
  • Y10T409/303136 - to make a double curvature foil

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 082 - Turning
  • 144 - Woodworking
  • 451 - Abrading