2217643

Information

• Patent Grant
• 2217643

• References
• Source

• Patent Number

  2,217,643

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1940
  84 years ago

• CPC

  • G01F1/375 - with mechanical or fluidic indication

• US Classifications

  • 073 - Measuring and testing
  • 138 - Pipes and tubular conduits
  • 196 - Mineral oils: apparatus
  • 251 - Valves and valve actuation