2170390

Information

• Patent Grant
• 2170390

• References
• Source

• Patent Number

  2,170,390

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1939
  85 years ago

• CPC

  • E03C1/294 - with provisions against loss of water lock
  • Y10T137/4591 - Enlarged upflow leg

• US Classifications

  • 137 - Fluid handling