1935935

Information

• Patent Grant
• 1935935

• References
• Source

• Patent Number

  1,935,935

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1933
  91 years ago

• CPC

  • E03C1/294 - with provisions against loss of water lock
  • Y10T137/4598 - Topside access opening

• US Classifications

  • 137 - Fluid handling