1225238

Information

• Patent Grant
• 1225238

• References
• Source

• Patent Number

  1,225,238

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1917
  107 years ago

• CPC

  • F16K43/008 - the main valve having a back-seat position
  • Y10S137/901 - Biased ball valves with operators

• US Classifications

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