2663189

Information

• Patent Grant
• 2663189

• References
• Source

• Patent Number

  2,663,189

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1953
  71 years ago

• CPC

  • G01F3/221 - Valves therefor
  • G01F3/225 - characterised by constructional features of membranes or by means for improving proper functioning of membranes

• US Classifications

  • 073 - Measuring and testing