419717

Information

• Patent Grant
• 419717

• References
• Source

• Patent Number

  419,717

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1890
  135 years ago

• CPC

  • E03C1/288 - having non-return valves against return of waste water
  • Y10T137/3222 - With liquid seal in liquid flow line
  • Y10T137/3331 - With co-acting valve in liquid flow path
  • Y10T137/4501 - Ball valve
  • Y10T137/4508 - Seats vertically up

• US Classifications

  • 137 - Fluid handling