2807870

Information

• Patent Grant
• 2807870

• References
• Source

• Patent Number

  2,807,870

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1957
  67 years ago

• CPC

  • B21C23/085 - Making tubes
  • B21K3/04 - blades
  • B64C11/24 - Hollow blades
  • Y10T29/49334 - Utilizing hollow tube blank

• US Classifications

  • 029 - Metal working
  • 416 - Fluid reaction surfaces