1668462

Information

• Patent Grant
• 1668462

• References
• Source

• Patent Number

  1,668,462

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1928
  96 years ago

• CPC

  • F04D29/325 - for axial flow fans
  • Y10S454/908 - having rotary retarder

• US Classifications

  • 416 - Fluid reaction surfaces
  • 454 - Ventilation