3138958

Information

• Patent Grant
• 3138958

• References
• Source

• Patent Number

  3,138,958

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  60 years ago

• CPC

  • G01L21/04 - wherein the chamber is closed by liquid vacuum gauges of the McLeod type

• US Classifications

  • 073 - Measuring and testing