1471944

Information

• Patent Grant
• 1471944

• References
• Source

• Patent Number

  1,471,944

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1923
  101 years ago

• CPC

  • E02B9/027 - Sliding closures
  • Y02E10/22 - Conventional

• US Classifications

  • 251 - Valves and valve actuation
  • 405 - Hydraulic and earth engineering