1879581

Information

• Patent Grant
• 1879581

• References
• Source

• Patent Number

  1,879,581

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1932
  92 years ago

• CPC

  • B08B15/002 - using a central suction system
  • Y10T137/4523 - Plural inlet

• US Classifications

  • 104 - Railways
  • 137 - Fluid handling
  • 285 - Pipe joints or couplings
  • 454 - Ventilation