671523

Information

• Patent Grant
• 671523

• References
• Source

• Patent Number

  671,523

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1901
  123 years ago

• CPC

  • F01N1/165 - for adjusting flow area
  • Y10T137/7745 - Annular lip or baffle

• US Classifications

  • 181 - Acoustics
  • 137 - Fluid handling
  • 251 - Valves and valve actuation