2643725

Information

• Patent Grant
• 2643725

• References
• Source

• Patent Number

  2,643,725

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1953
  71 years ago

• CPC

  • B21D53/78 - propeller blades turbine blades
  • Y10T29/49334 - Utilizing hollow tube blank

• US Classifications

  • 416 - Fluid reaction surfaces
  • 029 - Metal working
  • 219 - Electric heating