3503465

Information

• Patent Grant
• 3503465

• References
• Source

• Patent Number

  3,503,465

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1970
  55 years ago

• CPC

  • F02C7/24 - Heat or noise insulation
  • F01B31/16 - Silencers specially adapted for steam engines
  • F01N1/24 - by using sound-absorbing materials
  • F04D19/002 - Axial flow fans
  • F04D29/664 - by means of sound absorbing material
  • F16L55/033 - Noise absorbers

• US Classifications

  • 181 - Acoustics
  • 415 - Rotary kinetic fluid motors or pumps