1659816

Information

• Patent Grant
• 1659816

• References
• Source

• Patent Number

  1,659,816

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1928
  97 years ago

• CPC

  • F16K15/12 - Springs for ring valves
  • Y10T137/7832 - Plural valves biased closed
  • Y10T137/7863 - Stop

• US Classifications

  • 137 - Fluid handling